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Folic acid in diet - Recommendations

Alternative Names

Vitamin B9; Folate in diet; Diet - folic acid; Diet - folate; Pteroylglutamic acid

Recommendations:

The best way to get the daily requirement of essential vitamins is to eat a balanced diet that contains a variety of foods from the food guide pyramid. Most people in the United States have an adequate dietary intake of folic acid because it is plentiful in the food supply.

There is good evidence that folic acid can help reduce the risk of certain birth defects (spina bifida and anencephaly). Women who are pregnant or planning to become pregnant should take at least 400 micrograms (mcg) of folic acid every day. Pregnant women need even higher levels of folic acid. Ask your health care provider which amount is best for you.

The Food and Nutrition Board at the Institute of Medicine recommends the following dietary intake for folate:

Infants

  • 0 - 6 months: 65 mcg/day
  • 7 - 12 months: 80 mcg/day

Children

  • 1 - 3 years: 150 mcg/day
  • 4 - 8 years: 200 mcg/day
  • 9 - 13 years: 300 mcg/day

Adolescents and Adults

  • Males age 14 and older: 400 mcg/day
  • Females age 14 - 50: 400 mcg/day plus 400 mcg/day from supplements or fortified foods
  • Females age 50 and over: 400 mcg/day

Specific recommendations depend on age, gender, and other factors (such as pregnancy). Many foods are now fortified with folic acid to help prevent birth defects.

The best way to get the daily requirement of essential vitamins is to eat a balanced diet that contains a variety of foods from the food guide pyramid.

  • Reviewed last on: 3/7/2009
  • Linda Vorvick, MD, Family Physician, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Institute of Medicine. Food and Nutrition Board. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, PantothenicAcid, Biotin, and Choline. National Academy Press, Washington, DC, 1998.

Hamrick I, Counts SH. Vitamin and mineral supplements. Wellness and Prevention. December 2008:35(4);729-747.

Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: Saunders Elsevier; 2007.

Mason, MB. Vitamins, trace minerals, and other micronutrients. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 237.

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