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ULs for Infants

0–12 months

Not possible to establish for supplemental folate

ULs for Children

1–3 years

300 µg/day of folate from fortified foods or supplements

4–8 years

400 µg/day of folate from fortified foods or supplements

9–13 years

600 µg/day of folate from fortified foods or supplements

14–18 years

800 µg/day of folate from fortified foods or supplements

ULs for Pregnancy

14–18 years

800 µg/day of folate from fortified foods or supplements

19 years and older

1,000 µg/day of folate from fortified foods or supplements

ULs for Lactation

14–18 years

800 µg/day of folate from fortified foods or supplements

19 years and older

1,000 µg/day of folate from fortified foods or supplements

Special Considerations

Individuals who are at risk of vitamin B12 deficiency (e.g., those who eat no animal foods [vegans] and other individuals identified in Table 9-4) may be at increased risk of the precipitation of neurological disorders if they consume excess folate.

Intake Assessment

It is not possible to use data from the Third National Health and Nutrition Examination Survey (NHANES III) or the Continuing Survey of Food Intakes by Individuals to determine the population’s exposure to folic acid. Currently, survey data do not distinguish between food folate and folic acid added as a fortificant or taken as a supplement. Based on data from NHANES III and excluding pregnant women (for whom folate supplements are often prescribed), the highest reported total folate intake from food and supplements



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