http://www.cdc.gov/ncbddd/folicacid/promo_whatsnew.htm
National Center on Birth Defects and Developmental Disabilities
The CDC, the March of Dimes, and the National Council on Folic Acid have organized the National Folic Acid Campaign to promote the use of folic acid to prevent the serious birth defects spina bifida and anencephaly. The goal of the campaign is to educate all women who could possibly become pregnant to consume 400 micrograms (400 mcg) of synthetic folic acid daily from vitamin supplements and/or fortified foods in addition to eating food folate in a healthful diet.