81_FR_22249 81 FR 22176 - Food Additives Permitted for Direct Addition to Food for Human Consumption; Folic Acid

81 FR 22176 - Food Additives Permitted for Direct Addition to Food for Human Consumption; Folic Acid

DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration

Federal Register Volume 81, Issue 73 (April 15, 2016)

Page Range22176-22183
FR Document2016-08792

The Food and Drug Administration (FDA or we) is amending the food additive regulations to provide for the safe use of folic acid in corn masa flour. We are taking this action in response to a food additive petition filed jointly by Gruma Corporation, Spina Bifida Association, March of Dimes Foundation, American Academy of Pediatrics, Royal DSM N.V., and National Council of La Raza.

Federal Register, Volume 81 Issue 73 (Friday, April 15, 2016)
[Federal Register Volume 81, Number 73 (Friday, April 15, 2016)]
[Rules and Regulations]
[Pages 22176-22183]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-08792]



[[Page 22176]]

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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

21 CFR Part 172

[Docket No. FDA-2012-F-0480]


Food Additives Permitted for Direct Addition to Food for Human 
Consumption; Folic Acid

AGENCY: Food and Drug Administration, HHS.

ACTION: Final rule.

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SUMMARY: The Food and Drug Administration (FDA or we) is amending the 
food additive regulations to provide for the safe use of folic acid in 
corn masa flour. We are taking this action in response to a food 
additive petition filed jointly by Gruma Corporation, Spina Bifida 
Association, March of Dimes Foundation, American Academy of Pediatrics, 
Royal DSM N.V., and National Council of La Raza.

DATES: This rule is effective April 15, 2016. See section VIII for 
further information on the filing of objections. Submit either 
electronic or written objections and requests for a hearing by May 16, 
2016. The Director of the Federal Register approves the incorporation 
by reference of certain publications listed in the rule as of April 15, 
2016.

ADDRESSES: You may submit objections and requests for a hearing as 
follows:

Electronic Submissions

    Submit electronic objections in the following way:
     Federal eRulemaking Portal: http://www.regulations.gov. 
Follow the instructions for submitting comments. Objections submitted 
electronically, including attachments, to http://www.regulations.gov 
will be posted to the docket unchanged. Because your objection will be 
made public, you are solely responsible for ensuring that your 
objection does not include any confidential information that you or a 
third party may not wish to be posted, such as medical information, 
your or anyone else's Social Security number, or confidential business 
information, such as a manufacturing process. Please note that if you 
include your name, contact information, or other information that 
identifies you in the body of your objection, that information will be 
posted on http://www.regulations.gov.
     If you want to submit an objection with confidential 
information that you do not wish to be made available to the public, 
submit the objection as a written/paper submission and in the manner 
detailed (see ``Written/Paper Submissions'' and ``Instructions'').

Written/Paper Submissions

    Submit written/paper submissions as follows:
     Mail/Hand delivery/Courier (for written/paper 
submissions): Division of Dockets Management (HFA-305), Food and Drug 
Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852.
     For written/paper objections submitted to the Division of 
Dockets Management, FDA will post your objection, as well as any 
attachments, except for information submitted, marked and identified, 
as confidential, if submitted as detailed in ``Instructions.''
    Instructions: All submissions received must include the Docket No. 
FDA-2012-F-0480 for ``Food Additives Permitted for Direct Addition to 
Food for Human Consumption; Folic Acid.'' Received objections will be 
placed in the docket and, except for those submitted as ``Confidential 
Submissions,'' publicly viewable at http://www.regulations.gov or at 
the Division of Dockets Management between 9 a.m. and 4 p.m., Monday 
through Friday.
     Confidential Submissions--To submit an objection with 
confidential information that you do not wish to be made publicly 
available, submit your objections only as a written/paper submission. 
You should submit two copies total. One copy will include the 
information you claim to be confidential with a heading or cover note 
that states ``THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION.'' The 
Agency will review this copy, including the claimed confidential 
information, in its consideration of comments. The second copy, which 
will have the claimed confidential information redacted/blacked out, 
will be available for public viewing and posted on http://www.regulations.gov. Submit both copies to the Division of Dockets 
Management. If you do not wish your name and contact information to be 
made publicly available, you can provide this information on the cover 
sheet and not in the body of your comments and you must identify this 
information as ``confidential.'' Any information marked as 
``confidential'' will not be disclosed except in accordance with 21 CFR 
10.20 and other applicable disclosure law. For more information about 
FDA's posting of comments to public dockets, see 80 FR 56469, September 
18, 2015, or access the information at: http://www.fda.gov/regulatoryinformation/dockets/default.htm.
    Docket: For access to the docket to read background documents or 
the electronic and written/paper comments received, go to http://www.regulations.gov and insert the docket number, found in brackets in 
the heading of this document, into the ``Search'' box and follow the 
prompts and/or go to the Division of Dockets Management, 5630 Fishers 
Lane, Rm. 1061, Rockville, MD 20852.

FOR FURTHER INFORMATION CONTACT: Judith Kidwell, Center for Food Safety 
and Applied Nutrition (HFS-265), Food and Drug Administration, 5100 
Paint Branch Pkwy., College Park, MD 20740-3835, 240-402-1071.

SUPPLEMENTARY INFORMATION: 

I. Background

    In a document published in the Federal Register on June 13, 2012 
(77 FR 35317), we announced that Gruma Corporation, Spina Bifida 
Association, March of Dimes Foundation, American Academy of Pediatrics, 
Royal DSM N.V., and National Council of La Raza (the petitioners), c/o 
Alston & Bird, LLP, 950 F Street NW., Washington, DC 20004-1404, had 
jointly filed a food additive petition (FAP 2A4796). Subsequently, the 
March of Dimes Foundation informed us that Alston & Bird, LLP, was no 
longer representing the petitioners and that the March of Dimes 
Foundation would be the main contact for the petition. The address of 
the March of Dimes Foundation is 1401 K. St. NW., Suite 900A, 
Washington, DC 20005. The March of Dimes Foundation also informed us 
that Royal DSM N.V. no longer was affiliated with this petition. The 
petition proposed that we amend the food additive regulations in Sec.  
172.345 Folic acid (folacin) (21 CFR 172.345) to provide for the 
addition of folic acid to corn masa flour (CMF) at levels not to exceed 
0.7 milligrams (mg) per pound (lb) (154 micrograms ([mu]g) folic acid/
100 grams (g) CMF). The petition requested this fortification to 
increase the folic acid intake for U.S. women of childbearing age who 
regularly consume products made from CMF as a staple in their diet, 
including, in particular, women of Latin American descent (for example, 
Mexican Americans), to help reduce the incidence of neural tube defects 
(NTDs), which are birth defects affecting the spine, brain, and spinal 
cord. This final rule is a complete response to the petition.
    Folic acid is the synthetic form of folate, an important B vitamin 
essential to fetal development and other body functions. (Folate is the 
form of the vitamin found naturally in food.) It is

[[Page 22177]]

well recognized that pregnant women with folate deficiency have a 
higher risk of giving birth to infants affected with NTDs, specifically 
spina bifida and anencephaly. To reduce the incidence of NTDs, the U.S. 
Public Health Service (PHS) and Centers for Disease Control and 
Prevention (CDC) recommend that all women of childbearing age consume 
0.4 mg (400 [mu]g) of folic acid daily, in addition to the consumption 
of naturally occurring folate from the diet. In response to this 
recommendation, FDA began a mandatory folic acid fortification program 
in 1998, requiring folic acid to be added to enriched cereal grains and 
cereal grain products that have a standard of identity under 21 CFR 
parts 136, 137, and 139 at levels ranging from 0.43 mg to 1.4 mg/lb of 
the finished product (61 FR 8781, March 5, 1996) (1996 final rule).
    Fortification with folic acid was required for enriched cereal-
grain products that already had standards of identity at the time the 
1996 final rule went into effect on January 1, 1998. (Standards of 
identity are FDA regulations that define a given food product, its 
name, and ingredients that must be used, or may be used, in the 
manufacture of the food. They were created to maintain the integrity of 
food products and to ensure that foods meet buyers' expectations.) Many 
foods do not have standards of identity, including CMF. The amounts of 
folic acid required in enriched cereal-grain products (bread, rolls, 
and buns; wheat flours; corn meals; farina; rice; and macaroni and 
noodle products) were specifically chosen to increase daily folic acid 
consumption for women of childbearing age without consumers in the 
general population exceeding established safe levels. In addition to 
mandatory fortification of these foods, folic acid may voluntarily be 
added at specified levels in breakfast cereal, corn grits, meal 
replacement products, infant formula, foods for special dietary uses, 
and medical foods (Sec.  172.345).
    To support the safety of the proposed uses of folic acid, the 
petitioners submitted dietary exposure estimates of folic acid from the 
proposed use in CMF, as well as all dietary sources from currently 
permitted uses of folic acid at levels reported in the U.S. Department 
of Agriculture's Food and Nutrient Database for Dietary Studies, which 
represents the most current database for nutrient composition in foods, 
including folic acid found in fortified foods. The petitioners included 
intake from dietary supplements reported in the National Health and 
Nutrition Examination Survey (NHANES) 2001-2008 datasets in their 
estimates. They reported exposure estimates at the median for several 
population groups stratified by gender, race/ethnicity, and age. The 
petitioners also reported estimates of the percentage of the different 
population groups whose intake estimates exceeded the Tolerable Upper 
Intake Levels (ULs) established by the Institute of Medicine (IOM) for 
folic acid. The IOM UL is the highest level of daily nutrient intake 
that is likely to pose no risk of adverse health effects to almost all 
individuals in the general population. Generally, the UL represents 
total intake from conventional food, water and dietary supplements.
    Additionally, the petitioners included over 300 scientific 
literature reports on folic acid published through 2012. The majority 
of these references concern epidemiological studies that investigated 
associations between folate status or folic acid intake levels and 
health outcomes. The petitioners included some animal studies, most of 
which focused on the mechanisms of action of folic acid.
    The petitioners also provided safety information from the 1998 IOM 
Dietary Reference Intake (DRI) report on folic acid (Ref. 1). In the 
1998 report, the IOM established Recommended Dietary Allowances (RDA) 
for folate and ULs for folic acid. The petitioners also presented 
safety reviews and data evaluations on folic acid that were conducted 
by various national health agencies: United Kingdom (UK) Scientific 
Advisory Committee on Nutrition (Refs. 2 and 3); Food Standards 
Australia New Zealand (Refs. 4 and 5); Food Safety Authority Ireland 
(Refs. 6 and 7); and Health Council of the Netherlands (Refs. 8 and 9). 
These health agencies conducted thorough reviews of scientific papers, 
published through 2009, on the potential health outcomes of folic acid 
intake.

II. Evaluation of Safety

    To establish with reasonable certainty that a food additive is not 
harmful under its intended conditions of use, we consider the projected 
human dietary exposure to the additive, toxicological data on the 
additive, and other relevant information (such as published literature) 
available to us. We compare an individual's estimated daily intake 
(EDI) of the additive from all food sources, including dietary 
supplements, to an acceptable intake level established by toxicological 
data. The EDI is determined by projections based on the amount of the 
additive proposed for use in particular foods and on data regarding the 
amount consumed from all food sources of the additive. We chose the 
95th percentile of exposure as a conservative representation of 
habitual intake of folic acid by ``high'' consumers.
    As part of our safety evaluation of folic acid fortification in 
CMF, we conducted an updated literature search for relevant scientific 
publications from 1998 through 2015. Results of our updated literature 
search confirmed that the petitioners adequately covered the available 
published relevant safety information on folic acid, and we found only 
a few additional relevant publications in our search.

A. Acceptable Daily Intake Level for Folic Acid

    In the 1993 proposed rule (58 FR 53305, October 14, 1993) and the 
1996 final rule for mandatory folic acid fortification in certain 
foods, we adopted a safe upper limit of 1 mg per day (d) of total 
folate intake for the general population. This decision was based on 
the recommendation of the PHS that all women of childbearing age 
consume 0.4 mg (400 [mu]g) of folic acid daily to reduce the risk of 
NTDs. The PHS further reported that total folate and folic acid 
consumption should be maintained at levels under 1 mg/d because high 
folic acid intakes could mask the signs of pernicious anemia thereby 
complicating the diagnosis of vitamin B12 deficiency (Ref. 
10).
    In its 1998 safety assessment, the IOM concluded that, based on the 
weight of the limited but suggestive evidence, excessive folic acid 
intake may precipitate or exacerbate neuropathy in vitamin 
B12-deficient individuals and justifies the selection of 
this endpoint as the critical endpoint for the development of a UL 
(Ref. 1). In its dose-response analysis, the IOM evaluated case reports 
of patients with vitamin B12 deficiency who developed or 
demonstrated a progression of neurological complications and who had 
been treated with oral administrations of folic acid. The data from 
this analysis did not provide a no-observed-adverse-effect level. 
Instead, the IOM established a lowest-observed-adverse-effect level 
(LOAEL) at the 5 mg/d dose based on the number of reported cases of 
neurological deterioration at certain doses of folic acid.
    An uncertainty factor of 5 was applied to the LOAEL, establishing a 
UL of 1 mg/d for adults 19 years and older. This UL was adjusted for 
children and adolescents on the basis of relative metabolic body 
weights and the resulting values were rounded down. For children 1 to 3 
years of age, the IOM established a UL of 300 [micro]g/p/d; for

[[Page 22178]]

children 4 to 8 years of age, the IOM established a UL of 400 [micro]g/
p/d; for children 9 to 13 years of age, the IOM established a UL of 600 
[micro]g/p/d; for children 14 to 18 years of age; the IOM established a 
UL of 800 [micro]g/p/d. The IOM determined that a UL for infants could 
not be established because of a lack of data on adverse effects in this 
age group and concerns about the infant's ability to handle excess 
amounts of folic acid (Ref. 1).
    Folic acid intake of 1 mg/d is widely recognized by different 
international bodies as the safe or tolerable UL for adults. This UL 
has been used by different countries in the evaluation of their 
fortification policies, including Australia and New Zealand, the UK, 
Ireland, and the Netherlands. In a reevaluation in 2008, the European 
Food Safety Authority (EFSA) concluded that the evidence and dose-
response information on other health endpoints were not sufficient to 
support establishing a different UL (Ref. 11). We reviewed available 
updated safety and epidemiological studies published after the 
publication of the 1998 IOM report and found no scientific concerns 
that would justify revision of the current IOM ULs (Ref. 12).

B. Estimated Daily Intake for Folic Acid

    The petitioners provided dietary intake estimates for folic acid 
from the proposed use in CMF and from all current dietary sources, 
including dietary supplements. In calculating exposure to folic acid 
from foods, the petitioners used food consumption data from the NHANES 
2001-2002 dataset, which is based on one 24-hour dietary recall survey, 
and from the NHANES 2003-2008 dataset, which is based on two 24-hour 
dietary recall surveys. We note that estimates of nutrient exposure 
based on a single day of consumption do not adequately account for 
within-person variation in intake and can lead to underestimation of 
population variance, thereby underestimating the exposure (Ref. 13).
    In modeling folic acid exposure from fortified CMF, the petitioners 
identified 103 foods as containing CMF. The petitioners considered CMF 
as a non-whole grain and used a proxy of non-whole grains to estimate 
the amount of CMF in each identified food item based on the number of 
``ounce equivalents'' of non-whole grains present in each food item. 
The petitioners' estimate indirectly determined the proportion of CMF 
present in a grain product; however, we typically use the weight (e.g., 
gram, milligram) percentage of CMF in each food item for dietary 
exposure assessments. Based on our review, we identified 118 foods 
currently available on the market that contain CMF as an ingredient. 
For these reasons, we conducted our own exposure estimate to folic acid 
for the overall U.S. population 1 year of age and older, excluding 
pregnant women, and various population subgroups stratified by age, 
gender, and race/ethnicity, and for various percentiles of intake.
    Specifically, we calculated total dietary exposure estimates for 
folic acid that included exposure to folic acid from currently 
fortified foods, dietary supplements, and the proposed fortification in 
CMF. We used consumption data from the NHANES 2003-2008 database and a 
method for estimating usual dietary intakes of foods and nutrients 
developed by the National Cancer Institute (http://appliedresearch.cancer.gov/diet/usualintakes/method.html.). Naturally 
occurring food folate was not included in the total folic acid exposure 
estimates because the IOM ULs were established for synthetic folic acid 
only.
    The NHANES survey has five race/ethnicity codes in its demographic 
data file. According to NHANES, this race/ethnicity variable was 
derived from responses to the survey questions on race and Hispanic 
origin. Respondents who self-identified as ``Mexican American'' were 
coded as such (Mexican American) regardless of their other race-
ethnicity identities. For respondents who self-identified as 
``Hispanic'' but not as ``Mexican American'' the race/ethnicity was 
categorized as ``Other Hispanic.'' Non-Hispanic respondents were 
categorized based on their self-reported races: Non-Hispanic White, 
non-Hispanic Black, and other non-Hispanic races including non-Hispanic 
multiracial (Ref. 14).
    Using a statistical analysis software program (SAS[supreg]), we 
calculated exposure to folic acid from the proposed use in CMF by 
adding the daily exposure to folic acid from conventional foods to the 
average daily exposure of folic acid from dietary supplements. We used 
this software program to determine distributions of exposure (i.e., 
means, medians, percentiles) and the percentage of individuals with 
usual daily total folic acid whose exposure exceeded the UL (1,000 
[micro]g or other age-specific ULs). We estimated exposure for the same 
population subgroups for which the petitioners reported exposure in 
their submission in 8 age groups (1 to 3 years, 4 to 8 years, 9 to 13 
years, 14 to 18 years, 19 to 30 years, 31 to 50 years, 51 to 70 years, 
and 71+ years), 2 gender groups (male and female), and 3 race/ethnicity 
subgroups (Non-Hispanic (NH) White, NH Black, and Mexican American).
    We estimated exposure for two scenarios. The first estimate 
represented a background (current) cumulative exposure of folic acid 
that included currently permitted uses of folic acid in conventional 
foods and dietary supplement use. The second estimate represented a 
modeled cumulative exposure of folic acid that included currently 
permitted uses of folic acid in conventional food, dietary supplement 
use, and the proposed use in CMF and products made from CMF, such as 
tortillas and tortilla chips (modeled). For the second scenario, we 
assumed a fortification level of 140 [micro]g folic acid/100 g CMF. 
This fortification level was chosen to account for the petitioners' 
estimates of loss of folic acid during processing and storage (Ref. 
13). Exposure estimates at the 95th percentile represent ``high'' 
consumers of folic acid and provide a conservative estimate of 
exposure.
    Table 1 summarizes our exposure estimates for the overall U.S. 
population for each of the scenarios at the median and 95th percentile 
of intake with the number of people represented in each age group in 
the NHANES survey indicated in the table:

                                         Table 1--Estimated Cumulative Folic Acid Intake for the U.S. Population
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                            Median intake ([micro]g/d)        95th percentile intake
                                                                              IOM UL     --------------------------------          ([micro]g/d)
                       Age (years)                          NHANES (n)     ([micro]g/d)                                  -------------------------------
                                                                                              Current         Modeled         Current         Modeled
--------------------------------------------------------------------------------------------------------------------------------------------------------
All (1+ years)..........................................           22717  ..............             231             244             765             775
1-3.....................................................            1911             300             156             160             493             504
4-8.....................................................            2071             400             255             267             618             633
9-13....................................................            2608             600             240             257             622             628

[[Page 22179]]

 
14-18...................................................            3038             800             239             252             646             658
19-30...................................................            2608            1000             229             247             744             758
31-50...................................................            4118            1000             219             237             769             783
51-70...................................................            3861            1000             266             271             919             927
71+.....................................................            2302            1000             255             258             836             840
--------------------------------------------------------------------------------------------------------------------------------------------------------

    The median intakes for all age groups are well below the respective 
ULs. For children (1 to 13 years of age), the current 95th percentile 
folic acid intake estimates exceed their respective age-corresponding 
IOM ULs. We estimate that the addition of folic acid in CMF at the 
proposed level would result in a small additional increase of up to 15 
[micro]g/d of folic acid intake for this population group. Our exposure 
estimates at the 95th percentile for the adult population 19 years of 
age and older and for children 14 to 18 years of age did not exceed the 
IOM UL for either exposure scenario.
    Results from our exposure assessment demonstrate that CMF 
fortification would result in a slight increase in total folic acid 
exposure among the U.S. population. Further, as shown in Table 2, the 
proposed CMF fortification would result in a greater proportional 
increase in the median usual total folic acid exposure among Mexican 
Americans than among the NH White and NH Black populations. The 
estimated current median usual total folic acid intake of Mexican 
Americans is lower than that of the NH White population. Intake 
estimates that include the proposed CMF fortification show a larger 
increase for the median usual total folic acid exposure of Mexican 
Americans compared to the other groups, but the median intake estimate 
for Mexican Americans remains lower than that of NH Whites.

Table 2--Usual Total Folic Acid Intake Estimates for the U.S. Population
                            by Race/Ethnicity
------------------------------------------------------------------------
                                               Exposure (median/95th
                                                    percentile)
             Race/Ethnicity              -------------------------------
                                              Current         Modeled
                                           ([micro]g/d)    ([micro]g/d)
------------------------------------------------------------------------
All.....................................         231/765         244/775
Non-Hispanic White......................         253/820         261/834
Non-Hispanic Black......................         181/597         191/608
Mexican American........................         187/588         228/622
------------------------------------------------------------------------

    In addition, for non-pregnant women of childbearing age (15 to 44 
years), our exposure estimates show an increase in the median usual 
total folic acid intake of Mexican American women from 164 [micro]g/d 
to 206 [micro]g/d when intake from fortified CMF was included in the 
analysis. Our exposure estimates also show an increase in folic acid 
intake among NH White women (214 [micro]g/d to 221 [micro]g/d) and NH 
Black women (168 [micro]g/d to 179 [micro]g/d) from the petitioned use 
of folic acid in CMF (Ref. 13).
Dietary Supplements
    Because the use of supplements containing folic acid is a 
contributing factor to total exposure, we calculated usual folic acid 
intake for supplement non-users (i.e., those who did not report 
consuming supplements containing folic acid in the NHANES Dietary 
Supplement Questionnaire) and supplement users (i.e., those who 
reported consuming supplements containing folic acid).
    As shown in Table 3, among dietary supplement users who consume CMF 
products, the 95th percentile total folic acid intake estimates for all 
age groups exceeded the respective age-corresponding ULs, except for 
the population 71 years of age and older.

                   Table 3--Estimated Total Folic Acid Intake Among Corn Masa Consumers Who Are Dietary Supplement Users and Non-Users
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                              95th percentile intake        Amount of folic acid intake
                                                                                                   ([micro]g/d)               exceeding the UL (95th
                                                                              IOM UL     -------------------------------- percentile minus UL) ([micro]g/
        Dietary supplement usage            Age (years)     NHANES (n)     ([micro]g/d)                                                 d)
                                                                                              Current         Modeled    -------------------------------
                                                                                                                              Current         Modeled
--------------------------------------------------------------------------------------------------------------------------------------------------------
Users...................................             1-3             362             300             552             575             252             275
                                                     4-8             626             400             774             811             374             411
                                                    9-13             444             600             699             724              99             124
                                                   14-18             361             800             998            1051             198             251
                                                   19-30             536            1000            1091            1135              91             135
                                                   31-50            1161            1000            1107            1130             107             130
                                                   51-70            1482            1000            1133            1148             133             148
                                                     71+             947            1000             889             866               0               0
Non-users...............................             1-3             655             300             259             287               0               0

[[Page 22180]]

 
                                                     4-8             830             400             357             388               0               0
                                                    9-13            1086             600             450             489               0               0
                                                   14-18            1239             800             457             510               0               0
                                                   19-30             862            1000             344             400               0               0
                                                   31-50            1122            1000             329             389               0               0
                                                   51-70             675            1000             312             354               0               0
                                                     71+             258            1000             413             419               0               0
--------------------------------------------------------------------------------------------------------------------------------------------------------

    For the 51 to 70 year age group, exposure at the 95th percentile 
was estimated to be 1133 [micro]g/d, representing 113 [micro]g/d more 
than the adult UL of 1 mg/d (1000 [micro]g/d). CMF fortification would 
further increase the 95th percentile intake by 15 [micro]g/d, resulting 
in an intake estimated to be 1148 [micro]g/d, which is 148 [micro]g/d 
more than the UL.
    In contrast, CMF consumers who are not dietary supplement users had 
considerably lower folic acid exposure estimates compared to the 
supplement users. The 95th percentile folic acid intakes for all 
dietary supplement non-user age groups did not exceed their respective 
age-corresponding IOM ULs. While the proposed folic acid CMF 
fortification will increase folic acid intakes in these individuals, 
their modeled 95th percentile folic acid intakes remain below their 
respective age-corresponding ULs.
    The population group of users of dietary supplements with the 
highest percentile exceeding the UL for folic acid was children 1 to 8 
years of age. For this population, exposure estimates exceed the age-
specific ULs whether consumption of fortified CMF was included in the 
estimate or not (Ref. 13). Children are more likely than adults to 
exceed their age-specific UL because of their higher consumption of 
food and drink on a body weight basis as compared to adults. Another 
reason is the lower UL values established for children. We note that 
the ULs for children were not based on adverse effects, but 
extrapolated from the adult UL.

C. Safety of the Petitioned Uses of Folic Acid

    In our safety review, we considered several potential health 
effects of folic acid intake that the petitioners reported in their 
submission. Specifically, these health effects include:
     Masking vitamin B12 deficiency;
     Direct effects on vitamin B12 deficiency-
related neurological complications and cognitive decline;
     Cancer;
     Effects of prenatal exposure on childhood health outcomes;
     Hypersensitivity;
     Reproductive effects; and
     Folic acid-drug interaction.
    Of these health effects, our review found suggestive evidence for 
masking of vitamin B12 deficiency and exacerbation of 
vitamin B12 deficiency-related neurological complications 
and cognitive decline. The most at-risk population for both of these 
potential health effects is the population 50 years of age and older. 
For the other health effects, the overall evidence is unclear and could 
not be substantiated based on the available evidence (Ref. 12).
1. Masking Effect of Folic Acid on Vitamin B12 Deficiency
    We reviewed data from clinical case reports from vitamin 
B12 deficient patients and found that masking cases were 
mostly associated with pharmacological doses of folic acid (greater 
than 5 mg/d). There was no information in the reports to identify the 
lowest level of folic acid associated with the masking effect. For 
populations with dietary exposure to folic acid, epidemiological 
studies have shown mixed results and study design limitations. In a 
recent study in which data from the NHANES 1991-1994 (pre-mandatory 
fortification in the United States) and 2001-2006 (post-mandatory 
fortification) surveys were compared, the prevalence of low vitamin 
B12 status in the absence of megaloblastic anemia or 
macrocytosis among adults 50 years of age and older did not increase 
after fortification (Ref. 15). The masking effect of folic acid has 
been reviewed by other regulatory authorities (Refs. 2 to 9). We agree 
with their conclusions that folic acid intake up to the UL of 1 mg/d is 
not likely to mask vitamin B12 deficiency. Additionally, 
current medical practice does not rely primarily on the hematological 
index to screen for vitamin B12 deficiency (Refs. 16 to 18). 
Currently, the recommended testing for vitamin B12 
deficiency includes analyzing for serum levels of vitamin 
B12 and of the metabolites, methylmalonic acid and 
homocysteine. Based on our exposure estimates and the incremental 
increase in estimated exposure from the proposed use of folic acid in 
CMF, we conclude that the CMF fortification at the proposed level is 
not likely to increase the risk of masking vitamin B12 
deficiency, and that the risk of the masking effect from current and 
proposed levels of dietary folic acid intake is low (Ref. 12).
2. Direct Effects of Folic Acid on Vitamin B12 Deficiency-
Related Neurological Complications and Cognitive Decline
    a. Accelerating or exacerbating neurological complications. In 
addition to the indirect masking effect of folic acid, there have been 
concerns that excess folic acid also may directly accelerate or 
exacerbate B12 deficiency-related neurological complications 
such as neuropathy. These endpoints were evaluated by IOM to determine 
the folic acid UL. In reviewing the historical clinical cases of 
neuropathy related to vitamin B12 deficiency, we noted that 
the rate of disease progression varied significantly among vitamin 
B12-deficient patients, regardless of folic acid treatment. 
Because of the limited number of recorded cases, the large variability 
among patients at clinical presentation, and no new evidence presented 
after the IOM evaluation, the evidence remains suggestive as IOM stated 
in 1998. A definitive conclusion cannot be determined in this review 
whether folic acid directly enhances or worsens B12 
deficiency-related neuropathy.

[[Page 22181]]

    The potential neurological effects of high folic acid intake in 
children and women of childbearing age have not been thoroughly 
studied. However, because vitamin B12 deficiency is rare in 
these two populations in the United States (Ref. 19), the public health 
risk of this effect associated with increased exposure from folic acid 
fortification of CMF is likely to be insignificant.
    b. Cognitive decline among the population group ages 50 years and 
older. Acceleration of cognitive decline among individuals who are 
vitamin B12-deficient is a potential adverse health effect 
if undetected because of high folic acid intake. The most at-risk 
population for this adverse effect are consumers 50 years and older who 
have total folic acid intake higher than the UL. As described 
previously, people 50 years of age and older are unlikely to have total 
folic acid intake higher than the UL unless they use dietary 
supplements. According to an analysis in 2007, most multivitamins for 
seniors that contain folic acid also contain vitamin B12 
(Ref. 20). Therefore, unless their vitamin B12 absorption is 
severely impaired due to certain diseases, individuals in this age 
group who have total folic acid higher than the UL are unlikely to have 
vitamin B12 deficiency, and thus are not at risk for this 
effect. Therefore, we conclude that cognitive health risks are not 
likely to be an issue for this sensitive population as a result of the 
petitioned use of folic acid in CMF (Ref. 12).
3. Metabolic Fate of Folic Acid
    Folic acid is a water soluble vitamin that is quickly absorbed by 
the body. In humans, the bioavailability of folic acid is about 85 
percent in fortified foods (Ref. 1). To be used as a methyl group 
donor, it must first be converted to dihydrofolate (DHF) and then 
tetrahydrofolate (THF) by the liver enzyme dihydrofolate reductase 
(DHFR). Evidence has shown that the activity of DHFR in humans is 
extremely low in comparison to that in rats; highly variable due to 
genetic polymorphism; and may become saturated when folic acid is 
consumed at levels higher than the 1 mg/d (Ref. 21). In addition, 
unlike DHF, folic acid is a poor substrate of DHFR, making the first 
step of metabolism rate-limiting (Ref. 22).
    Upon conversion, THF is distributed in all body tissues. Excretion 
is the main elimination route of folic acid. In response to normal 
intake from food, the majority of folate is effectively reabsorbed in 
the kidney proximal tubules and little or no folate is lost in the 
urine (Ref. 22). Following oral administration of single 0.1 mg to 0.2 
mg doses of folic acid in healthy adults, only a trace amount appears 
in urine. However, after doses of about 2.5 mg to 5 mg folic acid, 
about 50 percent is excreted in urine as a result of exceeded renal 
capacity for reabsorption (Refs. 22 and 23). Therefore, a significant 
amount of folic acid can be excreted from urine when the renal capacity 
for reabsorption is saturated by high intake, eliminating excess folic 
acid (Refs. 22 and 24).
4. Conclusions on the Potential Adverse Health Outcomes From High 
Intakes of Folic Acid
    There is some evidence linking two potential adverse health 
outcomes with high folic acid intake in adults: (1) Masking vitamin 
B12 deficiency and (2) accelerating or exacerbating 
neurological complications and cognitive decline among those who are 
vitamin B12 deficient.
    For both of these adverse health outcomes, the most at-risk 
population is individuals 50 years of age and older who have total 
folic acid intake higher than the UL. According to the results from our 
exposure assessment, these individuals primarily are dietary supplement 
users. The NHANES 1999-2002 data have established that, among the 60 
years of age and older population in the United States, about 25 
percent have low vitamin B12 status. Because about 10 to 30 
percent of the population 50 years and older have decreased absorption 
of food-bound vitamin B12, the IOM DRI report recommends 
that individuals 50 years of age and older obtain most of their vitamin 
B12 RDA, (2.4 [micro]g/d) from vitamin B12-
fortified foods or supplements (Ref. 1). Since most multivitamins for 
seniors contain both folic acid and vitamin B12 (Ref. 20), 
their risk for vitamin B12 deficiency should be low, unless 
their vitamin B12 absorption is severely impaired due to 
certain diseases. In addition, because the currently recommended 
medical practice in the United States does not rely primarily on the 
hematological index to screen for vitamin B12 deficiency but 
rather serum B12 metabolites, the masking effect is less 
likely. Therefore, we conclude that these health risks (vitamin 
B12 masking and exacerbating neurological deterioration) are 
not likely to be an issue for this population as a result of the 
petitioned use of folic acid in CMF.
    For other potential health outcomes, such as promoting the 
progression of established neoplasms, childhood hypersensitivity and 
reproductive outcomes, the evidence is not clear but suggests further 
study. There may be other, as-yet unidentified potential adverse 
effects of high folic acid intake in children and further study is 
warranted. However, as previously discussed, allowing folic acid in CMF 
is only projected to result in a slight increase for children 1 to 13 
years and 14 to 18 years of age at the 95th percentile of folic acid 
intake, such that there is only a marginal increase in exposure beyond 
the current intake levels for children.
5. Safety and Risk Characterization for Folic Acid
    Based on the data reviewed in this safety and risk assessment on 
folic acid, there was no definitive association of adverse effects of 
folic acid at the noted levels of folic acid exposure. We do not 
consider that any of the intake estimates in excess of the UL in this 
evaluation would cause an adverse health impact on any of the 
population subgroups because of the following reasons:
     The increase in exposure to folic acid for the studied 
populations from CMF fortification is small other than for Mexican 
Americans. For Mexican Americans, the increase in exposure is 
significantly larger but the resultant exposure levels are still below 
the levels for the general population.
     The ULs were calculated using a five-fold uncertainty 
factor, which is approximately twice that used for other B vitamins, 
providing an additional margin of safety (Ref. 12).
     The risk of masking vitamin B12 deficiency and 
related neurological complications from the estimated intake levels of 
folic acid is low because the most at-risk population to these health 
outcomes are individuals 50 years of age and older and most 
multivitamins for seniors that contain folic acid also contain vitamin 
B12. Additionally, current medical practice does not rely 
primarily on the hematological index to screen for vitamin 
B12 deficiency but rather serum testing for vitamin 
B12 and its metabolites, making the masking effect less 
likely.
     The metabolic activation of folic acid by the enzyme DHFR 
is slow in humans and may be saturated at doses higher than 1 mg/d.
     Unmetabolized folic acid (UMFA) has no known biological 
function as a methyl group donor in DNA synthesis and methylation. To 
become active, folic acid must be reduced to THF. Excess levels of 
folic acid are unable to completely convert to its active form 
resulting in circulating UMFA. Currently there is no consistent 
evidence of adverse health effects causatively associated with 
circulating UMFA.
     Folic acid is a water-soluble vitamin. A significant 
amount of folic

[[Page 22182]]

acid is excreted from urine when the renal capacity for reabsorption is 
saturated by high intake, eliminating excess folic acid.
     FDA's modeled intake estimates for folic acid in CMF are 
conservative in that they assume all CMF will be fortified with folic 
acid at the maximum permitted level and that manufacturing and storage 
losses would result in folic acid levels of 140 [micro]g/100 g in CMF 
as consumed.

III. Incorporation by Reference

    FDA is incorporating by reference the Food Chemicals Codex (FCC), 
9th ed. (updated through Third Supplement, effective December 1, 2015), 
pp. 495-496 (the most current edition), which was approved by the 
Office of the Federal Register. You may obtain a copy of the material 
from the United States Pharmacopeial Convention, 12601 Twinbrook Pkwy., 
Rockville, MD 20852, 1-800-227-8772, http://www.usp.org/.
    The FCC is a compendium of internationally recognized standards for 
the purity and identity of food ingredients. Because the current 
regulation for the use of folic acid in food (Sec.  172.345) indicates 
that the additive must meet the specifications in the FCC, we are 
amending the regulation to provide for the most current edition.

IV. Conclusion

    Based on all data relevant to folic acid that we reviewed, we 
conclude that the petitioned use of folic acid in CMF at a level not to 
exceed 0.7 mg folic acid per lb. CMF is safe. Consequently, we are 
amending the food additive regulations as set forth in this document. 
Additionally, the current regulation for the use of folic acid in food 
(Sec.  172.345) indicates that the additive must meet the 
specifications in the FCC, 7th Edition (FCC 7). The more current FCC is 
the 9th Edition (FCC 9). Because the specifications for folic acid in 
FCC 9 are identical to those in FCC 7, we are amending Sec.  172.345 by 
adopting the specifications for folic acid in FCC 9 in place of FCC 7.

V. Public Disclosure

    In accordance with Sec.  171.1(h) (21 CFR 171.1(h)), the petition 
and the documents that we considered and relied upon in reaching our 
decision to approve the petition will be made available for public 
disclosure (see FOR FURTHER INFORMATION CONTACT). As provided in Sec.  
171.1(h), we will delete from the documents any materials that are not 
available for public disclosure.

VI. Analysis of Environmental Impacts

    We previously considered the environmental effects of this rule, as 
stated in the June 13, 2012, Federal Register notice of petition for 
FAP 2A4796 (77 FR 35317). We stated that we had determined, under 21 
CFR 25.32(k), that this action ``is of a type that does not 
individually or cumulatively have a significant effect on the human 
environment'' such that neither an environmental assessment nor an 
environmental impact statement is required. We have not received any 
new information or comments that would affect our previous 
determination.

VII. Paperwork Reduction Act of 1995

    This final rule contains no collection of information. Therefore, 
clearance by the Office of Management and Budget under the Paperwork 
Reduction Act of 1995 is not required.

VIII. Objections

    If you will be adversely affected by one or more provisions of this 
regulation, you may file with the Division of Dockets Management (see 
ADDRESSES) either electronic or written objections. You must separately 
number each objection, and within each numbered objection you must 
specify with particularity the provision(s) to which you object, and 
the grounds for your objection. Within each numbered objection, you 
must specifically state whether you are requesting a hearing on the 
particular provision that you specify in that numbered objection. If 
you do not request a hearing for any particular objection, you waive 
the right to a hearing on that objection. If you request a hearing, 
your objection must include a detailed description and analysis of the 
specific factual information you intend to present in support of the 
objection in the event that a hearing is held. If you do not include 
such a description and analysis for any particular objection, you waive 
the right to a hearing on the objection.
    Any objections received in response to the regulation may be seen 
in the Division of Dockets Management between 9 a.m. and 4 p.m., Monday 
through Friday, and will be posted to the docket at http://www.regulations.gov.

IX. Section 301(ll) of the Federal Food, Drug, and Cosmetic Act

    Our review of this petition was limited to section 409 of the 
Federal Food, Drug, and Cosmetic Act (the FD&C Act) (21 U.S.C. 348). 
This final rule is not a statement regarding compliance with other 
sections of the FD&C Act. For example, section 301(ll) of the FD&C Act 
(21 U.S.C. 331(ll)) prohibits the introduction or delivery for 
introduction into interstate commerce of any food that contains a drug 
approved under section 505 of the FD&C Act (21 U.S.C. 355), a 
biological product licensed under section 351 of the Public Health 
Service Act (42 U.S.C. 262), or a drug or biological product for which 
substantial clinical investigations have been instituted and their 
existence has been made public, unless one of the exemptions in section 
301(ll)(1) to (ll)(4) of the FD&C Act applies. In our review of this 
petition, FDA did not consider whether section 301(ll) of the FD&C Act 
or any of its exemptions apply to food containing this additive. 
Accordingly, this final rule should not be construed to be a statement 
that a food containing this additive, if introduced or delivered for 
introduction into interstate commerce, would not violate section 
301(ll) of the FD&C Act. Furthermore, this language is included in all 
food additive final rules and therefore should not be construed to be a 
statement of the likelihood that section 301(ll) of the FD&C Act 
applies.

X. References

    The following references marked with an asterisk (*) are on display 
at the Division of Dockets Management (see ADDRESSES), under Docket No. 
FDA-2012-F-0480, and are available for viewing by interested persons 
between 9 a.m. and 4 p.m., Monday through Friday, they also are 
available electronically at http://www.regulations.gov. References 
without asterisks are not on display; they are available as published 
articles and books.

1. IOM, 1998. ``Dietary Reference Intakes for Thiamin, Riboflavin, 
Niacin, Vitamin B6, Folate, Vitamin B12, 
Pantothenic Acid, Biotin, and Choline.'' Washington, DC: National 
Academy Press. Available at: http://www.ncbi.nlm.nih.gov/books/NBK114310/ (accessed April 1, 2016).
*2. Scientific Advisory Committee on Nutrition (SACN), 2006. 
``Folate and Disease Prevention,'' London.
*3. SACN, 2009. ``Folic Acid and Colorectal Cancer Risk: Review of 
Recommendation for Mandatory Folic Acid Fortification.''
*4. Food Standards Australia New Zealand (FSANZ), 2007. ``Folic Acid 
and Colorectal Cancer Risk: Review of Recommendation for Mandatory 
Folic Acid Fortification.''
*5. FSANZ, 2009. ``Mandatory Folic Acid Fortification and Health 
Outcomes.''
*6. Food Safety Authority of Ireland (FSAI), 2006. ``Report of the 
National Committee on Folic Acid Food Fortification.''
*7. FSAI, 2008. ``Report of the Implementation Group on Folic Acid

[[Page 22183]]

Food Fortification to the Department of Health and Children.''
*8. GR Health Council of the Netherlands (HCN), 2000. ``Risks of 
Folic Acid Fortification.'' The Hague, Health Council of the 
Netherlands 2000/21.
*9. GR HCN, 2008. ``Towards an Optimal Use of Folic Acid.'' The 
Hague, Health Council of the Netherlands 2008/02E.
10. CDC, 1992. ``Recommendations for the Use of Folic Acid to Reduce 
the Number of Cases of Spina Bifida and Other Neural Tube Defects.'' 
Morbidity and Mortality Weekly Report 41. Available at: http://www.cdc.gov/mmwr/preview/mmwrhtml/00019479.htm (accessed April 1, 
2016).
*11. EFSA, 2009. Report prepared by the EFSA Scientific Cooperation 
Working Group on ``Analysis of Risks and Benefits of Fortification 
of Food with Folic A.''
*12. Memorandum from J. Zang, Toxicology Team, Division of Petition 
Review, to J. Kidwell, Division of Petition Review, March 23, 2016.
*13. Memorandum from H. Lee, Chemistry Review Group, Division of 
Petition Review, to J. Kidwell, Regulatory Group I, Division of 
Petition Review, April 2, 2014.
14. National Health and Nutrition Examination Survey 2007-2008 Data 
Documentation, Codebook, and Frequencies, CDC, 2009. Available at: 
http://wwwn.cdc.gov/nchs/nhanes/search/nhanes07_08.aspx (accessed 
April 1, 2016).
15. Qi, Y.P., A.N. Do, H.C. Hamner, C.M. Pfeiffer, et al., 2014. 
``The Prevalence of Low Serum Vitamin B-12 Status in the Absence of 
Anemia or Macrocytosis Did Not Increase Among Older U.S. Adults 
after Mandatory Folic Acid Fortification.'' The Journal of Nutrition 
144, 170-176.
16. Oh, R. and D.L. Brown, 2003. ``Vitamin B12 
Deficiency.'' American Family Physician 67, 979-986.
17. Stabler, S.P., 2013. ``Clinical Practice. Vitamin B12 
Deficiency.'' New England Journal of Medicine 368(2): 149-160.
18. Hunt A., D. Harrington, and S. Robinson, 2014. ``Vitamin 
B12 Deficiency.'' British Medical Journal 349: g5226.
19. Wright J.D., K. Bialostosky, E.W. Gunter, M.D. Carroll, et al., 
1998. ``Blood Folate and Vitamin B12: United States, 
1988-94.'' Vital Health and Statistics 11:1-78.
20. Berry, R.J., H.K. Carter, and Q. Yang, 2007. ``Cognitive 
Impairment in Older Americans in the Age of Folic Acid 
Fortification.'' American Journal of Clinical Nutrition 86, 265-267; 
author reply 267-269.
21. Bailey, S.W. and J.E. Ayling, 2009. ``The Extremely Slow and 
Variable Activity of Dihydrofolate Reductase in Human Liver and its 
Implications for High Folic Acid Intake.'' Proceedings of the 
National Academy of Sciences of the United States of America 106 
(36), 15424-15429.
22. Shane, B., ``Folate Chemistry and Metabolism,'' in Folate in 
Health and Disease, L. B. Bailey, Ed. Marcel Dekker, Boca Raton, FL, 
USA, 2nd edition, 2009.
23. McEvoy, G.K. (ed.). ``American Hospital Formulary Service--Drug 
Information 2005.'' Bethesda, MD: American Society of Health-System 
Pharmacists, Inc. 2005 (Plus Supplements).
24. Tamura, T. and E.L. Stokstad, 1973. ``The Availability of Food 
Folate in Man.'' British Journal of Haematology 25(4): 512-532.

List of Subjects in 21 CFR Part 172

    Food additives, Incorporation by reference, Reporting and 
recordkeeping requirements.

    Therefore, under the Federal Food, Drug, and Cosmetic Act and under 
authority delegated to the Commissioner of Food and Drugs and 
redelegated to the Director, Center for Food Safety and Applied 
Nutrition, 21 CFR part 172 is amended as follows:

PART 172--FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR 
HUMAN CONSUMPTION

0
1. The authority citation for 21 CFR part 172 continues to read as 
follows:

    Authority:  21 U.S.C. 321, 341, 342, 348, 371, 379e.

0
2. Amend Sec.  172.345 by revising the first sentence of paragraph (b) 
and adding paragraph (i) to read as follows:


Sec.  172.345  Folic acid (folacin).

* * * * *
    (b) Folic acid meets the specifications of the Food Chemicals 
Codex, 9th ed., updated through Third Supplement, effective December 1, 
2015, pp. 495-496, which is incorporated by reference. * * *
* * * * *
    (i) Folic acid may be added to corn masa flour at a level not to 
exceed 0.7 milligrams of folic acid per pound of corn masa flour.

    Dated: April 12, 2016.
Susan Bernard,
Director, Office of Regulations, Policy and Social Sciences, Center for 
Food Safety and Applied Nutrition.
[FR Doc. 2016-08792 Filed 4-14-16; 8:45 am]
 BILLING CODE 4164-01-P



                                                22176                Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations

                                                DEPARTMENT OF HEALTH AND                                manner detailed (see ‘‘Written/Paper                     Docket: For access to the docket to
                                                HUMAN SERVICES                                          Submissions’’ and ‘‘Instructions’’).                  read background documents or the
                                                                                                                                                              electronic and written/paper comments
                                                Food and Drug Administration                            Written/Paper Submissions
                                                                                                                                                              received, go to http://
                                                                                                           Submit written/paper submissions as                www.regulations.gov and insert the
                                                21 CFR Part 172                                         follows:                                              docket number, found in brackets in the
                                                                                                           • Mail/Hand delivery/Courier (for                  heading of this document, into the
                                                [Docket No. FDA–2012–F–0480]                            written/paper submissions): Division of               ‘‘Search’’ box and follow the prompts
                                                Food Additives Permitted for Direct                     Dockets Management (HFA–305), Food                    and/or go to the Division of Dockets
                                                Addition to Food for Human                              and Drug Administration, 5630 Fishers                 Management, 5630 Fishers Lane, Rm.
                                                Consumption; Folic Acid                                 Lane, Rm. 1061, Rockville, MD 20852.                  1061, Rockville, MD 20852.
                                                                                                           • For written/paper objections
                                                                                                                                                              FOR FURTHER INFORMATION CONTACT:
                                                AGENCY:    Food and Drug Administration,                submitted to the Division of Dockets
                                                HHS.                                                    Management, FDA will post your                        Judith Kidwell, Center for Food Safety
                                                                                                        objection, as well as any attachments,                and Applied Nutrition (HFS–265), Food
                                                ACTION:   Final rule.
                                                                                                        except for information submitted,                     and Drug Administration, 5100 Paint
                                                SUMMARY:    The Food and Drug                           marked and identified, as confidential,               Branch Pkwy., College Park, MD 20740–
                                                Administration (FDA or we) is                           if submitted as detailed in                           3835, 240–402–1071.
                                                amending the food additive regulations                  ‘‘Instructions.’’                                     SUPPLEMENTARY INFORMATION:
                                                to provide for the safe use of folic acid                  Instructions: All submissions received             I. Background
                                                in corn masa flour. We are taking this                  must include the Docket No. FDA–
                                                action in response to a food additive                   2012–F–0480 for ‘‘Food Additives                        In a document published in the
                                                petition filed jointly by Gruma                         Permitted for Direct Addition to Food                 Federal Register on June 13, 2012 (77
                                                Corporation, Spina Bifida Association,                  for Human Consumption; Folic Acid.’’                  FR 35317), we announced that Gruma
                                                March of Dimes Foundation, American                     Received objections will be placed in                 Corporation, Spina Bifida Association,
                                                Academy of Pediatrics, Royal DSM N.V.,                  the docket and, except for those                      March of Dimes Foundation, American
                                                and National Council of La Raza.                        submitted as ‘‘Confidential                           Academy of Pediatrics, Royal DSM N.V.,
                                                DATES: This rule is effective April 15,                 Submissions,’’ publicly viewable at                   and National Council of La Raza (the
                                                2016. See section VIII for further                      http://www.regulations.gov or at the                  petitioners), c/o Alston & Bird, LLP, 950
                                                information on the filing of objections.                Division of Dockets Management                        F Street NW., Washington, DC 20004–
                                                Submit either electronic or written                     between 9 a.m. and 4 p.m., Monday                     1404, had jointly filed a food additive
                                                objections and requests for a hearing by                through Friday.                                       petition (FAP 2A4796). Subsequently,
                                                May 16, 2016. The Director of the                          • Confidential Submissions—To                      the March of Dimes Foundation
                                                Federal Register approves the                           submit an objection with confidential                 informed us that Alston & Bird, LLP,
                                                incorporation by reference of certain                   information that you do not wish to be                was no longer representing the
                                                publications listed in the rule as of                   made publicly available, submit your                  petitioners and that the March of Dimes
                                                April 15, 2016.                                         objections only as a written/paper                    Foundation would be the main contact
                                                ADDRESSES: You may submit objections                    submission. You should submit two                     for the petition. The address of the
                                                and requests for a hearing as follows:                  copies total. One copy will include the               March of Dimes Foundation is 1401 K.
                                                                                                        information you claim to be confidential              St. NW., Suite 900A, Washington, DC
                                                Electronic Submissions                                  with a heading or cover note that states              20005. The March of Dimes Foundation
                                                  Submit electronic objections in the                   ‘‘THIS DOCUMENT CONTAINS                              also informed us that Royal DSM N.V.
                                                following way:                                          CONFIDENTIAL INFORMATION.’’ The                       no longer was affiliated with this
                                                  • Federal eRulemaking Portal: http://                 Agency will review this copy, including               petition. The petition proposed that we
                                                www.regulations.gov. Follow the                         the claimed confidential information, in              amend the food additive regulations in
                                                instructions for submitting comments.                   its consideration of comments. The                    § 172.345 Folic acid (folacin) (21 CFR
                                                Objections submitted electronically,                    second copy, which will have the                      172.345) to provide for the addition of
                                                including attachments, to http://                       claimed confidential information                      folic acid to corn masa flour (CMF) at
                                                www.regulations.gov will be posted to                   redacted/blacked out, will be available               levels not to exceed 0.7 milligrams (mg)
                                                the docket unchanged. Because your                      for public viewing and posted on http://              per pound (lb) (154 micrograms (mg)
                                                objection will be made public, you are                  www.regulations.gov. Submit both                      folic acid/100 grams (g) CMF). The
                                                solely responsible for ensuring that your               copies to the Division of Dockets                     petition requested this fortification to
                                                objection does not include any                          Management. If you do not wish your                   increase the folic acid intake for U.S.
                                                confidential information that you or a                  name and contact information to be                    women of childbearing age who
                                                third party may not wish to be posted,                  made publicly available, you can                      regularly consume products made from
                                                such as medical information, your or                    provide this information on the cover                 CMF as a staple in their diet, including,
                                                anyone else’s Social Security number, or                sheet and not in the body of your                     in particular, women of Latin American
                                                confidential business information, such                 comments and you must identify this                   descent (for example, Mexican
                                                as a manufacturing process. Please note                 information as ‘‘confidential.’’ Any                  Americans), to help reduce the
                                                that if you include your name, contact                  information marked as ‘‘confidential’’                incidence of neural tube defects (NTDs),
                                                information, or other information that                  will not be disclosed except in                       which are birth defects affecting the
                                                identifies you in the body of your                      accordance with 21 CFR 10.20 and other                spine, brain, and spinal cord. This final
jstallworth on DSK7TPTVN1PROD with RULES




                                                objection, that information will be                     applicable disclosure law. For more                   rule is a complete response to the
                                                posted on http://www.regulations.gov.                   information about FDA’s posting of                    petition.
                                                  • If you want to submit an objection                  comments to public dockets, see 80 FR                   Folic acid is the synthetic form of
                                                with confidential information that you                  56469, September 18, 2015, or access                  folate, an important B vitamin essential
                                                do not wish to be made available to the                 the information at: http://www.fda.gov/               to fetal development and other body
                                                public, submit the objection as a                       regulatoryinformation/dockets/                        functions. (Folate is the form of the
                                                written/paper submission and in the                     default.htm.                                          vitamin found naturally in food.) It is


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                                                                     Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations                                         22177

                                                well recognized that pregnant women                     reported exposure estimates at the                    chose the 95th percentile of exposure as
                                                with folate deficiency have a higher risk               median for several population groups                  a conservative representation of habitual
                                                of giving birth to infants affected with                stratified by gender, race/ethnicity, and             intake of folic acid by ‘‘high’’
                                                NTDs, specifically spina bifida and                     age. The petitioners also reported                    consumers.
                                                anencephaly. To reduce the incidence of                 estimates of the percentage of the                      As part of our safety evaluation of
                                                NTDs, the U.S. Public Health Service                    different population groups whose                     folic acid fortification in CMF, we
                                                (PHS) and Centers for Disease Control                   intake estimates exceeded the Tolerable               conducted an updated literature search
                                                and Prevention (CDC) recommend that                     Upper Intake Levels (ULs) established                 for relevant scientific publications from
                                                all women of childbearing age consume                   by the Institute of Medicine (IOM) for                1998 through 2015. Results of our
                                                0.4 mg (400 mg) of folic acid daily, in                 folic acid. The IOM UL is the highest                 updated literature search confirmed that
                                                addition to the consumption of                          level of daily nutrient intake that is                the petitioners adequately covered the
                                                naturally occurring folate from the diet.               likely to pose no risk of adverse health              available published relevant safety
                                                In response to this recommendation,                     effects to almost all individuals in the              information on folic acid, and we found
                                                FDA began a mandatory folic acid                        general population. Generally, the UL                 only a few additional relevant
                                                fortification program in 1998, requiring                represents total intake from                          publications in our search.
                                                folic acid to be added to enriched cereal               conventional food, water and dietary                  A. Acceptable Daily Intake Level for
                                                grains and cereal grain products that                   supplements.                                          Folic Acid
                                                have a standard of identity under 21                       Additionally, the petitioners included
                                                CFR parts 136, 137, and 139 at levels                   over 300 scientific literature reports on                In the 1993 proposed rule (58 FR
                                                ranging from 0.43 mg to 1.4 mg/lb of the                folic acid published through 2012. The                53305, October 14, 1993) and the 1996
                                                finished product (61 FR 8781, March 5,                  majority of these references concern                  final rule for mandatory folic acid
                                                1996) (1996 final rule).                                epidemiological studies that                          fortification in certain foods, we
                                                   Fortification with folic acid was                    investigated associations between folate              adopted a safe upper limit of 1 mg per
                                                required for enriched cereal-grain                      status or folic acid intake levels and                day (d) of total folate intake for the
                                                products that already had standards of                  health outcomes. The petitioners                      general population. This decision was
                                                identity at the time the 1996 final rule                included some animal studies, most of                 based on the recommendation of the
                                                went into effect on January 1, 1998.                    which focused on the mechanisms of                    PHS that all women of childbearing age
                                                (Standards of identity are FDA                          action of folic acid.                                 consume 0.4 mg (400 mg) of folic acid
                                                regulations that define a given food                       The petitioners also provided safety               daily to reduce the risk of NTDs. The
                                                product, its name, and ingredients that                 information from the 1998 IOM Dietary                 PHS further reported that total folate
                                                must be used, or may be used, in the                    Reference Intake (DRI) report on folic                and folic acid consumption should be
                                                manufacture of the food. They were                      acid (Ref. 1). In the 1998 report, the IOM            maintained at levels under 1 mg/d
                                                created to maintain the integrity of food               established Recommended Dietary                       because high folic acid intakes could
                                                products and to ensure that foods meet                  Allowances (RDA) for folate and ULs for               mask the signs of pernicious anemia
                                                buyers’ expectations.) Many foods do                    folic acid. The petitioners also                      thereby complicating the diagnosis of
                                                not have standards of identity,                         presented safety reviews and data                     vitamin B12 deficiency (Ref. 10).
                                                including CMF. The amounts of folic                     evaluations on folic acid that were                      In its 1998 safety assessment, the IOM
                                                acid required in enriched cereal-grain                  conducted by various national health                  concluded that, based on the weight of
                                                products (bread, rolls, and buns; wheat                 agencies: United Kingdom (UK)                         the limited but suggestive evidence,
                                                flours; corn meals; farina; rice; and                   Scientific Advisory Committee on                      excessive folic acid intake may
                                                macaroni and noodle products) were                      Nutrition (Refs. 2 and 3); Food                       precipitate or exacerbate neuropathy in
                                                specifically chosen to increase daily                   Standards Australia New Zealand (Refs.                vitamin B12-deficient individuals and
                                                folic acid consumption for women of                     4 and 5); Food Safety Authority Ireland               justifies the selection of this endpoint as
                                                childbearing age without consumers in                   (Refs. 6 and 7); and Health Council of                the critical endpoint for the
                                                the general population exceeding                        the Netherlands (Refs. 8 and 9). These                development of a UL (Ref. 1). In its
                                                established safe levels. In addition to                 health agencies conducted thorough                    dose-response analysis, the IOM
                                                mandatory fortification of these foods,                 reviews of scientific papers, published               evaluated case reports of patients with
                                                folic acid may voluntarily be added at                  through 2009, on the potential health                 vitamin B12 deficiency who developed
                                                specified levels in breakfast cereal, corn              outcomes of folic acid intake.                        or demonstrated a progression of
                                                grits, meal replacement products, infant                                                                      neurological complications and who
                                                                                                        II. Evaluation of Safety                              had been treated with oral
                                                formula, foods for special dietary uses,
                                                and medical foods (§ 172.345).                             To establish with reasonable certainty             administrations of folic acid. The data
                                                   To support the safety of the proposed                that a food additive is not harmful                   from this analysis did not provide a no-
                                                uses of folic acid, the petitioners                     under its intended conditions of use, we              observed-adverse-effect level. Instead,
                                                submitted dietary exposure estimates of                 consider the projected human dietary                  the IOM established a lowest-observed-
                                                folic acid from the proposed use in                     exposure to the additive, toxicological               adverse-effect level (LOAEL) at the 5
                                                CMF, as well as all dietary sources from                data on the additive, and other relevant              mg/d dose based on the number of
                                                currently permitted uses of folic acid at               information (such as published                        reported cases of neurological
                                                levels reported in the U.S. Department                  literature) available to us. We compare               deterioration at certain doses of folic
                                                of Agriculture’s Food and Nutrient                      an individual’s estimated daily intake                acid.
                                                Database for Dietary Studies, which                     (EDI) of the additive from all food                      An uncertainty factor of 5 was applied
                                                represents the most current database for                sources, including dietary supplements,               to the LOAEL, establishing a UL of 1
jstallworth on DSK7TPTVN1PROD with RULES




                                                nutrient composition in foods,                          to an acceptable intake level established             mg/d for adults 19 years and older. This
                                                including folic acid found in fortified                 by toxicological data. The EDI is                     UL was adjusted for children and
                                                foods. The petitioners included intake                  determined by projections based on the                adolescents on the basis of relative
                                                from dietary supplements reported in                    amount of the additive proposed for use               metabolic body weights and the
                                                the National Health and Nutrition                       in particular foods and on data                       resulting values were rounded down.
                                                Examination Survey (NHANES) 2001–                       regarding the amount consumed from                    For children 1 to 3 years of age, the IOM
                                                2008 datasets in their estimates. They                  all food sources of the additive. We                  established a UL of 300 mg/p/d; for


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                                                22178                        Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations

                                                children 4 to 8 years of age, the IOM                                  whole grain and used a proxy of non-                          and other non-Hispanic races including
                                                established a UL of 400 mg/p/d; for                                    whole grains to estimate the amount of                        non-Hispanic multiracial (Ref. 14).
                                                children 9 to 13 years of age, the IOM                                 CMF in each identified food item based                          Using a statistical analysis software
                                                established a UL of 600 mg/p/d; for                                    on the number of ‘‘ounce equivalents’’                        program (SAS®), we calculated
                                                children 14 to 18 years of age; the IOM                                of non-whole grains present in each                           exposure to folic acid from the proposed
                                                established a UL of 800 mg/p/d. The                                    food item. The petitioners’ estimate                          use in CMF by adding the daily
                                                IOM determined that a UL for infants                                   indirectly determined the proportion of                       exposure to folic acid from conventional
                                                could not be established because of a                                  CMF present in a grain product;                               foods to the average daily exposure of
                                                lack of data on adverse effects in this                                however, we typically use the weight                          folic acid from dietary supplements. We
                                                age group and concerns about the                                       (e.g., gram, milligram) percentage of                         used this software program to determine
                                                infant’s ability to handle excess                                      CMF in each food item for dietary                             distributions of exposure (i.e., means,
                                                amounts of folic acid (Ref. 1).                                        exposure assessments. Based on our                            medians, percentiles) and the
                                                   Folic acid intake of 1 mg/d is widely                               review, we identified 118 foods                               percentage of individuals with usual
                                                recognized by different international                                  currently available on the market that                        daily total folic acid whose exposure
                                                bodies as the safe or tolerable UL for                                 contain CMF as an ingredient. For these                       exceeded the UL (1,000 mg or other age-
                                                adults. This UL has been used by                                       reasons, we conducted our own                                 specific ULs). We estimated exposure
                                                different countries in the evaluation of                               exposure estimate to folic acid for the                       for the same population subgroups for
                                                their fortification policies, including                                overall U.S. population 1 year of age                         which the petitioners reported exposure
                                                Australia and New Zealand, the UK,                                     and older, excluding pregnant women,                          in their submission in 8 age groups (1
                                                Ireland, and the Netherlands. In a                                     and various population subgroups                              to 3 years, 4 to 8 years, 9 to 13 years,
                                                reevaluation in 2008, the European                                     stratified by age, gender, and race/                          14 to 18 years, 19 to 30 years, 31 to 50
                                                Food Safety Authority (EFSA)                                           ethnicity, and for various percentiles of                     years, 51 to 70 years, and 71+ years), 2
                                                concluded that the evidence and dose-                                  intake.                                                       gender groups (male and female), and 3
                                                response information on other health                                      Specifically, we calculated total                          race/ethnicity subgroups (Non-Hispanic
                                                endpoints were not sufficient to support                               dietary exposure estimates for folic acid                     (NH) White, NH Black, and Mexican
                                                establishing a different UL (Ref. 11). We                              that included exposure to folic acid                          American).
                                                reviewed available updated safety and                                  from currently fortified foods, dietary                         We estimated exposure for two
                                                epidemiological studies published after                                supplements, and the proposed                                 scenarios. The first estimate represented
                                                the publication of the 1998 IOM report                                 fortification in CMF. We used                                 a background (current) cumulative
                                                and found no scientific concerns that                                  consumption data from the NHANES                              exposure of folic acid that included
                                                would justify revision of the current                                  2003–2008 database and a method for                           currently permitted uses of folic acid in
                                                IOM ULs (Ref. 12).                                                     estimating usual dietary intakes of foods                     conventional foods and dietary
                                                                                                                       and nutrients developed by the National                       supplement use. The second estimate
                                                B. Estimated Daily Intake for Folic Acid
                                                                                                                       Cancer Institute (http://                                     represented a modeled cumulative
                                                   The petitioners provided dietary                                    appliedresearch.cancer.gov/diet/                              exposure of folic acid that included
                                                intake estimates for folic acid from the                               usualintakes/method.html.). Naturally                         currently permitted uses of folic acid in
                                                proposed use in CMF and from all                                       occurring food folate was not included                        conventional food, dietary supplement
                                                current dietary sources, including                                     in the total folic acid exposure estimates                    use, and the proposed use in CMF and
                                                dietary supplements. In calculating                                    because the IOM ULs were established                          products made from CMF, such as
                                                exposure to folic acid from foods, the                                 for synthetic folic acid only.                                tortillas and tortilla chips (modeled).
                                                petitioners used food consumption data                                    The NHANES survey has five race/                           For the second scenario, we assumed a
                                                from the NHANES 2001–2002 dataset,                                     ethnicity codes in its demographic data                       fortification level of 140 mg folic acid/
                                                which is based on one 24-hour dietary                                  file. According to NHANES, this race/                         100 g CMF. This fortification level was
                                                recall survey, and from the NHANES                                     ethnicity variable was derived from                           chosen to account for the petitioners’
                                                2003–2008 dataset, which is based on                                   responses to the survey questions on                          estimates of loss of folic acid during
                                                two 24-hour dietary recall surveys. We                                 race and Hispanic origin. Respondents                         processing and storage (Ref. 13).
                                                note that estimates of nutrient exposure                               who self-identified as ‘‘Mexican                              Exposure estimates at the 95th
                                                based on a single day of consumption                                   American’’ were coded as such                                 percentile represent ‘‘high’’ consumers
                                                do not adequately account for within-                                  (Mexican American) regardless of their                        of folic acid and provide a conservative
                                                person variation in intake and can lead                                other race-ethnicity identities. For                          estimate of exposure.
                                                to underestimation of population                                       respondents who self-identified as                              Table 1 summarizes our exposure
                                                variance, thereby underestimating the                                  ‘‘Hispanic’’ but not as ‘‘Mexican                             estimates for the overall U.S. population
                                                exposure (Ref. 13).                                                    American’’ the race/ethnicity was                             for each of the scenarios at the median
                                                   In modeling folic acid exposure from                                categorized as ‘‘Other Hispanic.’’ Non-                       and 95th percentile of intake with the
                                                fortified CMF, the petitioners identified                              Hispanic respondents were categorized                         number of people represented in each
                                                103 foods as containing CMF. The                                       based on their self-reported races: Non-                      age group in the NHANES survey
                                                petitioners considered CMF as a non-                                   Hispanic White, non-Hispanic Black,                           indicated in the table:

                                                                                   TABLE 1—ESTIMATED CUMULATIVE FOLIC ACID INTAKE FOR THE U.S. POPULATION
                                                                                                                                                                          Median intake               95th percentile intake
                                                                            Age                                      NHANES               IOM UL                             (μg/d)                          (μg/d)
jstallworth on DSK7TPTVN1PROD with RULES




                                                                          (years)                                      (n)                 (μg/d)
                                                                                                                                                                     Current         Modeled         Current          Modeled

                                                All (1+ years) ...........................................                   22717   ........................                  231           244               765             775
                                                1–3 ...........................................................               1911                     300                     156           160               493             504
                                                4–8 ...........................................................               2071                     400                     255           267               618             633
                                                9–13 .........................................................                2608                     600                     240           257               622             628



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                                                                              Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations                                                                                        22179

                                                                         TABLE 1—ESTIMATED CUMULATIVE FOLIC ACID INTAKE FOR THE U.S. POPULATION—Continued
                                                                                                                                                                                           Median intake                              95th percentile intake
                                                                             Age                                          NHANES                       IOM UL                                 (μg/d)                                         (μg/d)
                                                                           (years)                                          (n)                         (μg/d)
                                                                                                                                                                                   Current                    Modeled                Current          Modeled

                                                14–18 .......................................................                         3038                        800                          239                         252                 646              658
                                                19–30 .......................................................                         2608                       1000                          229                         247                 744              758
                                                31–50 .......................................................                         4118                       1000                          219                         237                 769              783
                                                51–70 .......................................................                         3861                       1000                          266                         271                 919              927
                                                71+ ...........................................................                       2302                       1000                          255                         258                 836              840



                                                  The median intakes for all age groups                                       children 14 to 18 years of age did not                                         populations. The estimated current
                                                are well below the respective ULs. For                                        exceed the IOM UL for either exposure                                          median usual total folic acid intake of
                                                children (1 to 13 years of age), the                                          scenario.                                                                      Mexican Americans is lower than that of
                                                current 95th percentile folic acid intake                                        Results from our exposure assessment                                        the NH White population. Intake
                                                estimates exceed their respective age-                                        demonstrate that CMF fortification                                             estimates that include the proposed
                                                corresponding IOM ULs. We estimate                                            would result in a slight increase in total                                     CMF fortification show a larger increase
                                                that the addition of folic acid in CMF at                                     folic acid exposure among the U.S.                                             for the median usual total folic acid
                                                the proposed level would result in a                                          population. Further, as shown in Table                                         exposure of Mexican Americans
                                                small additional increase of up to 15 mg/                                     2, the proposed CMF fortification would                                        compared to the other groups, but the
                                                d of folic acid intake for this population                                    result in a greater proportional increase                                      median intake estimate for Mexican
                                                group. Our exposure estimates at the                                          in the median usual total folic acid
                                                                                                                                                                                                             Americans remains lower than that of
                                                95th percentile for the adult population                                      exposure among Mexican Americans
                                                                                                                                                                                                             NH Whites.
                                                19 years of age and older and for                                             than among the NH White and NH Black

                                                                 TABLE 2—USUAL TOTAL FOLIC ACID INTAKE ESTIMATES FOR THE U.S. POPULATION BY RACE/ETHNICITY
                                                                                                                                                                                                                                           Exposure
                                                                                                                                                                                                                                     (median/95th percentile)
                                                                                                                             Race/Ethnicity
                                                                                                                                                                                                                                     Current          Modeled
                                                                                                                                                                                                                                     (μg/d)            (μg/d)

                                                All .............................................................................................................................................................................       231/765           244/775
                                                Non-Hispanic White .................................................................................................................................................                    253/820           261/834
                                                Non-Hispanic Black .................................................................................................................................................                    181/597           191/608
                                                Mexican American ...................................................................................................................................................                    187/588           228/622



                                                  In addition, for non-pregnant women                                         mg/d to 179 mg/d) from the petitioned                                          Supplement Questionnaire) and
                                                of childbearing age (15 to 44 years), our                                     use of folic acid in CMF (Ref. 13).                                            supplement users (i.e., those who
                                                exposure estimates show an increase in                                                                                                                       reported consuming supplements
                                                                                                                              Dietary Supplements
                                                the median usual total folic acid intake                                                                                                                     containing folic acid).
                                                of Mexican American women from 164                                              Because the use of supplements                                                 As shown in Table 3, among dietary
                                                mg/d to 206 mg/d when intake from                                             containing folic acid is a contributing                                        supplement users who consume CMF
                                                fortified CMF was included in the                                             factor to total exposure, we calculated                                        products, the 95th percentile total folic
                                                analysis. Our exposure estimates also                                         usual folic acid intake for supplement                                         acid intake estimates for all age groups
                                                show an increase in folic acid intake                                         non-users (i.e., those who did not report                                      exceeded the respective age-
                                                among NH White women (214 mg/d to                                             consuming supplements containing                                               corresponding ULs, except for the
                                                221 mg/d) and NH Black women (168                                             folic acid in the NHANES Dietary                                               population 71 years of age and older.

                                                    TABLE 3—ESTIMATED TOTAL FOLIC ACID INTAKE AMONG CORN MASA CONSUMERS WHO ARE DIETARY SUPPLEMENT
                                                                                           USERS AND NON-USERS
                                                                                                                                                                                      95th percentile intake                        Amount of folic acid intake
                                                                                                                                                                                             (μg/d)                                     exceeding the UL
                                                   Dietary supplement                             Age                     NHANES                       IOM UL                                                                       (95th percentile minus UL)
                                                          usage                                 (years)                     (n)                         (μg/d)                                                                                (μg/d)
                                                                                                                                                                                   Current                    Modeled
                                                                                                                                                                                                                                     Current          Modeled

                                                Users ............................                        1–3                          362                        300                         552                         575                  252              275
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                                                                                                          4–8                          626                        400                         774                         811                  374              411
                                                                                                         9–13                          444                        600                         699                         724                   99              124
                                                                                                        14–18                          361                        800                         998                        1051                  198              251
                                                                                                        19–30                          536                       1000                        1091                        1135                   91              135
                                                                                                        31–50                         1161                       1000                        1107                        1130                  107              130
                                                                                                        51–70                         1482                       1000                        1133                        1148                  133              148
                                                                                                          71+                          947                       1000                         889                         866                    0                0
                                                Non-users .....................                           1–3                          655                        300                         259                         287                    0                0



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                                                22180                Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations

                                                   TABLE 3—ESTIMATED TOTAL FOLIC ACID INTAKE AMONG CORN MASA CONSUMERS WHO ARE DIETARY SUPPLEMENT
                                                                                    USERS AND NON-USERS—Continued
                                                                                                                                                  95th percentile intake            Amount of folic acid intake
                                                                                                                                                         (μg/d)                         exceeding the UL
                                                   Dietary supplement               Age               NHANES              IOM UL                                                    (95th percentile minus UL)
                                                          usage                   (years)               (n)                (μg/d)                                                             (μg/d)
                                                                                                                                                 Current         Modeled
                                                                                                                                                                                     Current          Modeled

                                                                                          4–8                  830                400                      357              388                0                  0
                                                                                         9–13                 1086                600                      450              489                0                  0
                                                                                        14–18                 1239                800                      457              510                0                  0
                                                                                        19–30                  862               1000                      344              400                0                  0
                                                                                        31–50                 1122               1000                      329              389                0                  0
                                                                                        51–70                  675               1000                      312              354                0                  0
                                                                                          71+                  258               1000                      413              419                0                  0



                                                   For the 51 to 70 year age group,                        • Direct effects on vitamin B12                       deficiency. Additionally, current
                                                exposure at the 95th percentile was                     deficiency-related neurological                          medical practice does not rely primarily
                                                estimated to be 1133 mg/d, representing                 complications and cognitive decline;                     on the hematological index to screen for
                                                113 mg/d more than the adult UL of 1                       • Cancer;                                             vitamin B12 deficiency (Refs. 16 to 18).
                                                mg/d (1000 mg/d). CMF fortification                        • Effects of prenatal exposure on                     Currently, the recommended testing for
                                                would further increase the 95th                         childhood health outcomes;                               vitamin B12 deficiency includes
                                                percentile intake by 15 mg/d, resulting in                 • Hypersensitivity;                                   analyzing for serum levels of vitamin
                                                an intake estimated to be 1148 mg/d,                       • Reproductive effects; and                           B12 and of the metabolites,
                                                which is 148 mg/d more than the UL.                        • Folic acid-drug interaction.                        methylmalonic acid and homocysteine.
                                                   In contrast, CMF consumers who are                      Of these health effects, our review                   Based on our exposure estimates and
                                                not dietary supplement users had                        found suggestive evidence for masking                    the incremental increase in estimated
                                                considerably lower folic acid exposure                  of vitamin B12 deficiency and                            exposure from the proposed use of folic
                                                estimates compared to the supplement                    exacerbation of vitamin B12 deficiency-                  acid in CMF, we conclude that the CMF
                                                users. The 95th percentile folic acid                   related neurological complications and                   fortification at the proposed level is not
                                                intakes for all dietary supplement non-                 cognitive decline. The most at-risk                      likely to increase the risk of masking
                                                user age groups did not exceed their                    population for both of these potential                   vitamin B12 deficiency, and that the risk
                                                respective age-corresponding IOM ULs.                   health effects is the population 50 years                of the masking effect from current and
                                                While the proposed folic acid CMF                       of age and older. For the other health                   proposed levels of dietary folic acid
                                                fortification will increase folic acid                  effects, the overall evidence is unclear                 intake is low (Ref. 12).
                                                intakes in these individuals, their                     and could not be substantiated based on
                                                modeled 95th percentile folic acid                      the available evidence (Ref. 12).                        2. Direct Effects of Folic Acid on
                                                intakes remain below their respective                                                                            Vitamin B12 Deficiency-Related
                                                                                                        1. Masking Effect of Folic Acid on
                                                age-corresponding ULs.                                                                                           Neurological Complications and
                                                                                                        Vitamin B12 Deficiency
                                                                                                                                                                 Cognitive Decline
                                                   The population group of users of                        We reviewed data from clinical case
                                                dietary supplements with the highest                    reports from vitamin B12 deficient                          a. Accelerating or exacerbating
                                                percentile exceeding the UL for folic                   patients and found that masking cases                    neurological complications. In addition
                                                acid was children 1 to 8 years of age.                  were mostly associated with                              to the indirect masking effect of folic
                                                For this population, exposure estimates                 pharmacological doses of folic acid                      acid, there have been concerns that
                                                exceed the age-specific ULs whether                     (greater than 5 mg/d). There was no                      excess folic acid also may directly
                                                consumption of fortified CMF was                        information in the reports to identify the               accelerate or exacerbate B12 deficiency-
                                                included in the estimate or not (Ref. 13).              lowest level of folic acid associated with               related neurological complications such
                                                Children are more likely than adults to                 the masking effect. For populations with                 as neuropathy. These endpoints were
                                                exceed their age-specific UL because of                 dietary exposure to folic acid,                          evaluated by IOM to determine the folic
                                                their higher consumption of food and                    epidemiological studies have shown                       acid UL. In reviewing the historical
                                                drink on a body weight basis as                         mixed results and study design                           clinical cases of neuropathy related to
                                                compared to adults. Another reason is                   limitations. In a recent study in which                  vitamin B12 deficiency, we noted that
                                                the lower UL values established for                     data from the NHANES 1991–1994 (pre-                     the rate of disease progression varied
                                                children. We note that the ULs for                      mandatory fortification in the United                    significantly among vitamin B12-
                                                children were not based on adverse                      States) and 2001–2006 (post-mandatory                    deficient patients, regardless of folic
                                                effects, but extrapolated from the adult                fortification) surveys were compared,                    acid treatment. Because of the limited
                                                UL.                                                     the prevalence of low vitamin B12 status                 number of recorded cases, the large
                                                C. Safety of the Petitioned Uses of Folic               in the absence of megaloblastic anemia                   variability among patients at clinical
                                                Acid                                                    or macrocytosis among adults 50 years                    presentation, and no new evidence
jstallworth on DSK7TPTVN1PROD with RULES




                                                                                                        of age and older did not increase after                  presented after the IOM evaluation, the
                                                  In our safety review, we considered                   fortification (Ref. 15). The masking                     evidence remains suggestive as IOM
                                                several potential health effects of folic               effect of folic acid has been reviewed by                stated in 1998. A definitive conclusion
                                                acid intake that the petitioners reported               other regulatory authorities (Refs. 2 to                 cannot be determined in this review
                                                in their submission. Specifically, these                9). We agree with their conclusions that                 whether folic acid directly enhances or
                                                health effects include:                                 folic acid intake up to the UL of 1 mg/                  worsens B12 deficiency-related
                                                  • Masking vitamin B12 deficiency;                     d is not likely to mask vitamin B12                      neuropathy.


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                                                                     Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations                                        22181

                                                   The potential neurological effects of                mg doses of folic acid in healthy adults,             in children and further study is
                                                high folic acid intake in children and                  only a trace amount appears in urine.                 warranted. However, as previously
                                                women of childbearing age have not                      However, after doses of about 2.5 mg to               discussed, allowing folic acid in CMF is
                                                been thoroughly studied. However,                       5 mg folic acid, about 50 percent is                  only projected to result in a slight
                                                because vitamin B12 deficiency is rare in               excreted in urine as a result of exceeded             increase for children 1 to 13 years and
                                                these two populations in the United                     renal capacity for reabsorption (Refs. 22             14 to 18 years of age at the 95th
                                                States (Ref. 19), the public health risk of             and 23). Therefore, a significant amount              percentile of folic acid intake, such that
                                                this effect associated with increased                   of folic acid can be excreted from urine              there is only a marginal increase in
                                                exposure from folic acid fortification of               when the renal capacity for reabsorption              exposure beyond the current intake
                                                CMF is likely to be insignificant.                      is saturated by high intake, eliminating              levels for children.
                                                   b. Cognitive decline among the                       excess folic acid (Refs. 22 and 24).
                                                population group ages 50 years and                                                                            5. Safety and Risk Characterization for
                                                older. Acceleration of cognitive decline                4. Conclusions on the Potential Adverse               Folic Acid
                                                among individuals who are vitamin B12-                  Health Outcomes From High Intakes of                     Based on the data reviewed in this
                                                deficient is a potential adverse health                 Folic Acid                                            safety and risk assessment on folic acid,
                                                effect if undetected because of high folic                 There is some evidence linking two                 there was no definitive association of
                                                acid intake. The most at-risk population                potential adverse health outcomes with                adverse effects of folic acid at the noted
                                                for this adverse effect are consumers 50                high folic acid intake in adults: (1)                 levels of folic acid exposure. We do not
                                                years and older who have total folic acid               Masking vitamin B12 deficiency and (2)                consider that any of the intake estimates
                                                intake higher than the UL. As described                 accelerating or exacerbating                          in excess of the UL in this evaluation
                                                previously, people 50 years of age and                  neurological complications and                        would cause an adverse health impact
                                                older are unlikely to have total folic acid             cognitive decline among those who are                 on any of the population subgroups
                                                intake higher than the UL unless they                   vitamin B12 deficient.                                because of the following reasons:
                                                use dietary supplements. According to                      For both of these adverse health                      • The increase in exposure to folic
                                                an analysis in 2007, most multivitamins                 outcomes, the most at-risk population is              acid for the studied populations from
                                                for seniors that contain folic acid also                individuals 50 years of age and older                 CMF fortification is small other than for
                                                contain vitamin B12 (Ref. 20). Therefore,               who have total folic acid intake higher               Mexican Americans. For Mexican
                                                unless their vitamin B12 absorption is                  than the UL. According to the results                 Americans, the increase in exposure is
                                                severely impaired due to certain                        from our exposure assessment, these                   significantly larger but the resultant
                                                diseases, individuals in this age group                 individuals primarily are dietary                     exposure levels are still below the levels
                                                who have total folic acid higher than the               supplement users. The NHANES 1999–                    for the general population.
                                                UL are unlikely to have vitamin B12                     2002 data have established that, among                   • The ULs were calculated using a
                                                deficiency, and thus are not at risk for                the 60 years of age and older population              five-fold uncertainty factor, which is
                                                this effect. Therefore, we conclude that                in the United States, about 25 percent                approximately twice that used for other
                                                cognitive health risks are not likely to be             have low vitamin B12 status. Because                  B vitamins, providing an additional
                                                an issue for this sensitive population as               about 10 to 30 percent of the population              margin of safety (Ref. 12).
                                                a result of the petitioned use of folic                 50 years and older have decreased                        • The risk of masking vitamin B12
                                                acid in CMF (Ref. 12).                                  absorption of food-bound vitamin B12,                 deficiency and related neurological
                                                                                                        the IOM DRI report recommends that                    complications from the estimated intake
                                                3. Metabolic Fate of Folic Acid                         individuals 50 years of age and older                 levels of folic acid is low because the
                                                   Folic acid is a water soluble vitamin                obtain most of their vitamin B12 RDA,                 most at-risk population to these health
                                                that is quickly absorbed by the body. In                (2.4 mg/d) from vitamin B12-fortified                 outcomes are individuals 50 years of age
                                                humans, the bioavailability of folic acid               foods or supplements (Ref. 1). Since                  and older and most multivitamins for
                                                is about 85 percent in fortified foods                  most multivitamins for seniors contain                seniors that contain folic acid also
                                                (Ref. 1). To be used as a methyl group                  both folic acid and vitamin B12 (Ref. 20),            contain vitamin B12. Additionally,
                                                donor, it must first be converted to                    their risk for vitamin B12 deficiency                 current medical practice does not rely
                                                dihydrofolate (DHF) and then                            should be low, unless their vitamin B12               primarily on the hematological index to
                                                tetrahydrofolate (THF) by the liver                     absorption is severely impaired due to                screen for vitamin B12 deficiency but
                                                enzyme dihydrofolate reductase                          certain diseases. In addition, because                rather serum testing for vitamin B12 and
                                                (DHFR). Evidence has shown that the                     the currently recommended medical                     its metabolites, making the masking
                                                activity of DHFR in humans is                           practice in the United States does not                effect less likely.
                                                extremely low in comparison to that in                  rely primarily on the hematological                      • The metabolic activation of folic
                                                rats; highly variable due to genetic                    index to screen for vitamin B12                       acid by the enzyme DHFR is slow in
                                                polymorphism; and may become                            deficiency but rather serum B12                       humans and may be saturated at doses
                                                saturated when folic acid is consumed                   metabolites, the masking effect is less               higher than 1 mg/d.
                                                at levels higher than the 1 mg/d (Ref.                  likely. Therefore, we conclude that                      • Unmetabolized folic acid (UMFA)
                                                21). In addition, unlike DHF, folic acid                these health risks (vitamin B12 masking               has no known biological function as a
                                                is a poor substrate of DHFR, making the                 and exacerbating neurological                         methyl group donor in DNA synthesis
                                                first step of metabolism rate-limiting                  deterioration) are not likely to be an                and methylation. To become active,
                                                (Ref. 22).                                              issue for this population as a result of              folic acid must be reduced to THF.
                                                   Upon conversion, THF is distributed                  the petitioned use of folic acid in CMF.              Excess levels of folic acid are unable to
                                                in all body tissues. Excretion is the main                 For other potential health outcomes,               completely convert to its active form
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                                                elimination route of folic acid. In                     such as promoting the progression of                  resulting in circulating UMFA.
                                                response to normal intake from food, the                established neoplasms, childhood                      Currently there is no consistent
                                                majority of folate is effectively                       hypersensitivity and reproductive                     evidence of adverse health effects
                                                reabsorbed in the kidney proximal                       outcomes, the evidence is not clear but               causatively associated with circulating
                                                tubules and little or no folate is lost in              suggests further study. There may be                  UMFA.
                                                the urine (Ref. 22). Following oral                     other, as-yet unidentified potential                     • Folic acid is a water-soluble
                                                administration of single 0.1 mg to 0.2                  adverse effects of high folic acid intake             vitamin. A significant amount of folic


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                                                22182                Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations

                                                acid is excreted from urine when the                    VI. Analysis of Environmental Impacts                 FD&C Act. For example, section 301(ll)
                                                renal capacity for reabsorption is                         We previously considered the                       of the FD&C Act (21 U.S.C. 331(ll))
                                                saturated by high intake, eliminating                   environmental effects of this rule, as                prohibits the introduction or delivery
                                                excess folic acid.                                      stated in the June 13, 2012, Federal                  for introduction into interstate
                                                  • FDA’s modeled intake estimates for                  Register notice of petition for FAP                   commerce of any food that contains a
                                                folic acid in CMF are conservative in                   2A4796 (77 FR 35317). We stated that                  drug approved under section 505 of the
                                                that they assume all CMF will be                        we had determined, under 21 CFR                       FD&C Act (21 U.S.C. 355), a biological
                                                fortified with folic acid at the maximum                25.32(k), that this action ‘‘is of a type             product licensed under section 351 of
                                                permitted level and that manufacturing                  that does not individually or                         the Public Health Service Act (42 U.S.C.
                                                and storage losses would result in folic                cumulatively have a significant effect on             262), or a drug or biological product for
                                                acid levels of 140 mg/100 g in CMF as                   the human environment’’ such that                     which substantial clinical investigations
                                                consumed.                                               neither an environmental assessment                   have been instituted and their existence
                                                                                                        nor an environmental impact statement                 has been made public, unless one of the
                                                III. Incorporation by Reference                                                                               exemptions in section 301(ll)(1) to (ll)(4)
                                                                                                        is required. We have not received any
                                                   FDA is incorporating by reference the                new information or comments that                      of the FD&C Act applies. In our review
                                                Food Chemicals Codex (FCC), 9th ed.                     would affect our previous                             of this petition, FDA did not consider
                                                (updated through Third Supplement,                      determination.                                        whether section 301(ll) of the FD&C Act
                                                effective December 1, 2015), pp. 495–                                                                         or any of its exemptions apply to food
                                                496 (the most current edition), which                   VII. Paperwork Reduction Act of 1995                  containing this additive. Accordingly,
                                                was approved by the Office of the                         This final rule contains no collection              this final rule should not be construed
                                                Federal Register. You may obtain a                      of information. Therefore, clearance by               to be a statement that a food containing
                                                copy of the material from the United                    the Office of Management and Budget                   this additive, if introduced or delivered
                                                States Pharmacopeial Convention,                        under the Paperwork Reduction Act of                  for introduction into interstate
                                                12601 Twinbrook Pkwy., Rockville, MD                    1995 is not required.                                 commerce, would not violate section
                                                20852, 1–800–227–8772, http://                          VIII. Objections                                      301(ll) of the FD&C Act. Furthermore,
                                                www.usp.org/.                                                                                                 this language is included in all food
                                                                                                          If you will be adversely affected by                additive final rules and therefore should
                                                   The FCC is a compendium of
                                                                                                        one or more provisions of this                        not be construed to be a statement of the
                                                internationally recognized standards for
                                                                                                        regulation, you may file with the                     likelihood that section 301(ll) of the
                                                the purity and identity of food
                                                                                                        Division of Dockets Management (see                   FD&C Act applies.
                                                ingredients. Because the current
                                                                                                        ADDRESSES) either electronic or written
                                                regulation for the use of folic acid in                                                                       X. References
                                                                                                        objections. You must separately number
                                                food (§ 172.345) indicates that the
                                                                                                        each objection, and within each
                                                additive must meet the specifications in                                                                        The following references marked with
                                                                                                        numbered objection you must specify
                                                the FCC, we are amending the                                                                                  an asterisk (*) are on display at the
                                                                                                        with particularity the provision(s) to
                                                regulation to provide for the most                      which you object, and the grounds for                 Division of Dockets Management (see
                                                current edition.                                        your objection. Within each numbered                  ADDRESSES), under Docket No. FDA–
                                                                                                        objection, you must specifically state                2012–F–0480, and are available for
                                                IV. Conclusion
                                                                                                        whether you are requesting a hearing on               viewing by interested persons between
                                                   Based on all data relevant to folic acid             the particular provision that you specify             9 a.m. and 4 p.m., Monday through
                                                that we reviewed, we conclude that the                  in that numbered objection. If you do                 Friday, they also are available
                                                petitioned use of folic acid in CMF at a                not request a hearing for any particular              electronically at http://
                                                level not to exceed 0.7 mg folic acid per               objection, you waive the right to a                   www.regulations.gov. References
                                                lb. CMF is safe. Consequently, we are                   hearing on that objection. If you request             without asterisks are not on display;
                                                amending the food additive regulations                  a hearing, your objection must include                they are available as published articles
                                                as set forth in this document.                          a detailed description and analysis of                and books.
                                                Additionally, the current regulation for                the specific factual information you                  1. IOM, 1998. ‘‘Dietary Reference Intakes for
                                                the use of folic acid in food (§ 172.345)               intend to present in support of the                        Thiamin, Riboflavin, Niacin, Vitamin B6,
                                                indicates that the additive must meet                   objection in the event that a hearing is                   Folate, Vitamin B12, Pantothenic Acid,
                                                the specifications in the FCC, 7th                      held. If you do not include such a                         Biotin, and Choline.’’ Washington, DC:
                                                Edition (FCC 7). The more current FCC                   description and analysis for any                           National Academy Press. Available at:
                                                is the 9th Edition (FCC 9). Because the                 particular objection, you waive the right                  http://www.ncbi.nlm.nih.gov/books/
                                                specifications for folic acid in FCC 9 are                                                                         NBK114310/ (accessed April 1, 2016).
                                                                                                        to a hearing on the objection.                        *2. Scientific Advisory Committee on
                                                identical to those in FCC 7, we are                       Any objections received in response
                                                amending § 172.345 by adopting the                                                                                 Nutrition (SACN), 2006. ‘‘Folate and
                                                                                                        to the regulation may be seen in the                       Disease Prevention,’’ London.
                                                specifications for folic acid in FCC 9 in               Division of Dockets Management                        *3. SACN, 2009. ‘‘Folic Acid and Colorectal
                                                place of FCC 7.                                         between 9 a.m. and 4 p.m., Monday                          Cancer Risk: Review of Recommendation
                                                V. Public Disclosure                                    through Friday, and will be posted to                      for Mandatory Folic Acid Fortification.’’
                                                                                                        the docket at http://                                 *4. Food Standards Australia New Zealand
                                                   In accordance with § 171.1(h) (21 CFR                www.regulations.gov.                                       (FSANZ), 2007. ‘‘Folic Acid and
                                                171.1(h)), the petition and the                                                                                    Colorectal Cancer Risk: Review of
                                                documents that we considered and                        IX. Section 301(ll) of the Federal Food,                   Recommendation for Mandatory Folic
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                                                relied upon in reaching our decision to                 Drug, and Cosmetic Act                                     Acid Fortification.’’
                                                approve the petition will be made                                                                             *5. FSANZ, 2009. ‘‘Mandatory Folic Acid
                                                                                                          Our review of this petition was
                                                                                                                                                                   Fortification and Health Outcomes.’’
                                                available for public disclosure (see FOR                limited to section 409 of the Federal                 *6. Food Safety Authority of Ireland (FSAI),
                                                FURTHER INFORMATION CONTACT). As                        Food, Drug, and Cosmetic Act (the                          2006. ‘‘Report of the National Committee
                                                provided in § 171.1(h), we will delete                  FD&C Act) (21 U.S.C. 348). This final                      on Folic Acid Food Fortification.’’
                                                from the documents any materials that                   rule is not a statement regarding                     *7. FSAI, 2008. ‘‘Report of the
                                                are not available for public disclosure.                compliance with other sections of the                      Implementation Group on Folic Acid



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                                                                     Federal Register / Vol. 81, No. 73 / Friday, April 15, 2016 / Rules and Regulations                                         22183

                                                     Food Fortification to the Department of            23. McEvoy, G.K. (ed.). ‘‘American Hospital           DEPARTMENT OF THE INTERIOR
                                                     Health and Children.’’                                  Formulary Service—Drug Information
                                                *8. GR Health Council of the Netherlands                     2005.’’ Bethesda, MD: American Society           Bureau of Indian Affairs
                                                     (HCN), 2000. ‘‘Risks of Folic Acid                      of Health-System Pharmacists, Inc. 2005
                                                     Fortification.’’ The Hague, Health                      (Plus Supplements).                              [167A2100DD/AAKC001030/
                                                     Council of the Netherlands 2000/21.                                                                      A0A501010.999900 253G]
                                                *9. GR HCN, 2008. ‘‘Towards an Optimal Use              24. Tamura, T. and E.L. Stokstad, 1973. ‘‘The
                                                     of Folic Acid.’’ The Hague, Health                      Availability of Food Folate in Man.’’
                                                                                                             British Journal of Haematology 25(4):
                                                                                                                                                              25 CFR Part 151
                                                     Council of the Netherlands 2008/02E.
                                                10. CDC, 1992. ‘‘Recommendations for the                     512–532.                                         RIN 1076–AF28
                                                     Use of Folic Acid to Reduce the Number
                                                     of Cases of Spina Bifida and Other                 List of Subjects in 21 CFR Part 172
                                                                                                                                                              Title Evidence for Trust Land
                                                     Neural Tube Defects.’’ Morbidity and
                                                                                                          Food additives, Incorporation by                    Acquisitions
                                                     Mortality Weekly Report 41. Available at:
                                                     http://www.cdc.gov/mmwr/preview/                   reference, Reporting and recordkeeping                AGENCY:   Bureau of Indian Affairs,
                                                     mmwrhtml/00019479.htm (accessed                    requirements.                                         Interior.
                                                     April 1, 2016).
                                                *11. EFSA, 2009. Report prepared by the                   Therefore, under the Federal Food,                  ACTION: Interim final rule; delay of
                                                     EFSA Scientific Cooperation Working                Drug, and Cosmetic Act and under                      effective date.
                                                     Group on ‘‘Analysis of Risks and                   authority delegated to the Commissioner
                                                     Benefits of Fortification of Food with             of Food and Drugs and redelegated to                  SUMMARY:   The Bureau of Indian Affairs
                                                     Folic A.’’
                                                                                                        the Director, Center for Food Safety and              (BIA) published an interim final rule on
                                                *12. Memorandum from J. Zang, Toxicology                                                                      title evidence for trust land acquisitions
                                                     Team, Division of Petition Review, to J.           Applied Nutrition, 21 CFR part 172 is
                                                                                                                                                              and received comments during the
                                                     Kidwell, Division of Petition Review,              amended as follows:
                                                                                                                                                              public comment period. The BIA
                                                     March 23, 2016.
                                                *13. Memorandum from H. Lee, Chemistry                  PART 172—FOOD ADDITIVES                               anticipates making technical revisions
                                                     Review Group, Division of Petition                 PERMITTED FOR DIRECT ADDITION                         to the rule in response to those
                                                     Review, to J. Kidwell, Regulatory Group            TO FOOD FOR HUMAN                                     comments. This notice delays the
                                                     I, Division of Petition Review, April 2,                                                                 effective date of the interim final rule
                                                     2014.
                                                                                                        CONSUMPTION
                                                                                                                                                              for 30 days, during which time BIA
                                                14. National Health and Nutrition                                                                             plans to publish a final rule with
                                                     Examination Survey 2007–2008 Data                  ■ 1. The authority citation for 21 CFR                technical revisions.
                                                     Documentation, Codebook, and                       part 172 continues to read as follows:
                                                     Frequencies, CDC, 2009. Available at:                                                                    DATES: The effective date of the interim
                                                     http://wwwn.cdc.gov/nchs/nhanes/                     Authority: 21 U.S.C. 321, 341, 342, 348,            final rule published March 1, 2016 (81
                                                     search/nhanes07_08.aspx (accessed                  371, 379e.                                            FR 10477) is delayed from April 15,
                                                     April 1, 2016).                                                                                          2016 to May 16, 2016.
                                                                                                        ■  2. Amend § 172.345 by revising the
                                                15. Qi, Y.P., A.N. Do, H.C. Hamner, C.M.
                                                                                                        first sentence of paragraph (b) and                   FOR FURTHER INFORMATION CONTACT: Ms.
                                                     Pfeiffer, et al., 2014. ‘‘The Prevalence of
                                                     Low Serum Vitamin B-12 Status in the               adding paragraph (i) to read as follows:              Elizabeth Appel, Director, Office of
                                                     Absence of Anemia or Macrocytosis Did                                                                    Regulatory Affairs and Collaborative
                                                     Not Increase Among Older U.S. Adults               § 172.345    Folic acid (folacin).                    Action, Office of the Assistant
                                                     after Mandatory Folic Acid                         *      *     *     *    *                             Secretary—Indian Affairs; telephone
                                                     Fortification.’’ The Journal of Nutrition                                                                (202) 273–4680, elizabeth.appel@
                                                     144, 170–176.                                         (b) Folic acid meets the specifications
                                                                                                                                                              bia.gov.
                                                16. Oh, R. and D.L. Brown, 2003. ‘‘Vitamin              of the Food Chemicals Codex, 9th ed.,
                                                     B12 Deficiency.’’ American Family                  updated through Third Supplement,                     SUPPLEMENTARY INFORMATION:      On March
                                                     Physician 67, 979–986.                             effective December 1, 2015, pp. 495–                  1, 2016, BIA published an interim final
                                                17. Stabler, S.P., 2013. ‘‘Clinical Practice.           496, which is incorporated by reference.              rule with an effective date of April 15,
                                                     Vitamin B12 Deficiency.’’ New England                                                                    2016. 81 FR 10477. The interim final
                                                                                                        * * *
                                                     Journal of Medicine 368(2): 149–160.                                                                     rule deletes the requirement for fee-to-
                                                18. Hunt A., D. Harrington, and S. Robinson,            *      *     *     *    *                             trust applicants to furnish title evidence
                                                     2014. ‘‘Vitamin B12 Deficiency.’’ British             (i) Folic acid may be added to corn
                                                     Medical Journal 349: g5226.
                                                                                                                                                              that meets the ‘‘Standards for the
                                                19. Wright J.D., K. Bialostosky, E.W. Gunter,           masa flour at a level not to exceed 0.7               Preparation of Title Evidence in Land
                                                     M.D. Carroll, et al., 1998. ‘‘Blood Folate         milligrams of folic acid per pound of                 Acquisitions by the United States’’
                                                     and Vitamin B12: United States, 1988–              corn masa flour.                                      issued by the U.S. Department of Justice
                                                     94.’’ Vital Health and Statistics 11:1–78.
                                                                                                          Dated: April 12, 2016.                              (DOJ), and replaces the requirement
                                                20. Berry, R.J., H.K. Carter, and Q. Yang,                                                                    with a more targeted requirement for
                                                     2007. ‘‘Cognitive Impairment in Older              Susan Bernard,
                                                                                                                                                              title evidence, because adherence to the
                                                     Americans in the Age of Folic Acid                 Director, Office of Regulations, Policy and           DOJ standards is not required for
                                                     Fortification.’’ American Journal of               Social Sciences, Center for Food Safety and
                                                     Clinical Nutrition 86, 265–267; author
                                                                                                                                                              acquisitions of land in trust for
                                                                                                        Applied Nutrition.                                    individual Indians or Indian tribes. The
                                                     reply 267–269.
                                                                                                        [FR Doc. 2016–08792 Filed 4–14–16; 8:45 am]           BIA received 13 comments during the
                                                21. Bailey, S.W. and J.E. Ayling, 2009. ‘‘The
                                                     Extremely Slow and Variable Activity of            BILLING CODE 4164–01–P                                public comment period and anticipates
                                                     Dihydrofolate Reductase in Human Liver                                                                   making technical changes in response to
                                                     and its Implications for High Folic Acid                                                                 those comments. The interim final rule
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                                                     Intake.’’ Proceedings of the National                                                                    stated that BIA may withdraw, initiate
                                                     Academy of Sciences of the United                                                                        a proposed rulemaking, or revise the
                                                     States of America 106 (36), 15424–
                                                     15429.
                                                                                                                                                              rule in response to comments. The BIA
                                                22. Shane, B., ‘‘Folate Chemistry and                                                                         has determined that technical revisions
                                                     Metabolism,’’ in Folate in Health and                                                                    to the rule may be appropriate and is
                                                     Disease, L. B. Bailey, Ed. Marcel Dekker,                                                                therefore delaying the effective date of
                                                     Boca Raton, FL, USA, 2nd edition, 2009.                                                                  the rule for 30 days, during which time


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Document Created: 2016-04-15 00:55:45
Document Modified: 2016-04-15 00:55:45
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis rule is effective April 15, 2016. See section VIII for further information on the filing of objections. Submit either electronic or written objections and requests for a hearing by May 16, 2016. The Director of the Federal Register approves the incorporation by reference of certain publications listed in the rule as of April 15, 2016.
ContactJudith Kidwell, Center for Food Safety and Applied Nutrition (HFS-265), Food and Drug Administration, 5100 Paint Branch Pkwy., College Park, MD 20740-3835, 240-402-1071.
FR Citation81 FR 22176 
CFR AssociatedFood Additives; Incorporation by Reference and Reporting and Recordkeeping Requirements

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