Folic Acid: Time to Supplement?

Chrome 2001
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Aetna Intelihealth InteliHealth Aetna Intelihealth Aetna Intelihealth
 
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Harvard Medical School
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Chrome 2001
Chrome 2001
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Folic Acid: Time to Supplement?

Pregnancy Guide
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Eating Right
Folic Acid: Time to Supplement?
Folic Acid: Time to Supplement?
htmJHI20FolicAcid
Folic acid is an important vitamin for women planning to become pregnant.
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InteliHealth
2009-07-01
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InteliHealth Medical Content
2011-08-04

Reviewed by the Faculty of Harvard Medical School

Folic Acid: Time to Supplement?

In 1998, the Food and Drug Administration (FDA) added folic acid to the list of vitamins and minerals added to the nation's food supply. The intent was to prevent devastating neural tube birth defects, which previously afflicted as many as 1 in 1,000 newborns.

The Role of Folic Acid in Fetal Development

Studies from the Centers for Disease Control and Prevention established that 50% to 70% of neural tube abnormalities, which produce profound and sometimes fatal neurologic defects, can be prevented by ensuring that pregnant women get enough folic acid daily. Women who are planning to become pregnant should start taking a supplement containing 400 to 800 micrograms of folic acid every day. Women should start taking it at least 1 month before conception and continue it for the first 3 months of pregnancy. Without supplementation, most women would fall short of the mark.

Public health officials reasoned that if the vitamin were added to grain products, such as flour, pasta, bread and breakfast cereals, women would get more of the folic acid they need, when they need it. But there was much debate about how much folic acid could be safely added to food.

In a compromise, the FDA decided to limit the amount of folic acid added to food. A bowl of breakfast cereal, for instance, provides only about 0.1 milligram. Most women of childbearing age do not consume enough folic acid to prevent neural tube defects. All women of childbearing age should take a vitamin containing at least 0.4 milligrams of folic acid.

Folic Acid in Food

Supplements aren't the only way to make sure you get plenty of this important B vitamin. Here are some of the top folic-acid-rich foods.

Food Folic acid (milligrams)
Chicken giblets, 3.5 ounces 0.38
Beans, most types, cooked, 1 cup 0.26
Turnip greens, cooked, 1/2 cup 0.17
Avocado, 1 medium 0.16
Okra, cooked, 1/2 cup 0.13
Asparagus, cooked, 1/2 cup 0.13
Breakfast cereal, fortified, 1 cup 0.11
Orange juice, 1 cup 0.11
Spinach, cooked, 1/2 cup 0.10
Source: USDA Nutrition Database

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Last updated May 20, 2013


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