The first question my OB/GYN asked when I came in to confirm my pregnancy was, "Are you taking a prenatal vitamin?"  I was, which is even more important now according to new research.  Not only does folate - folic acid in its natural form - protect against some major birth defects like spina bifida, it has also been proven to reduce the risk of ADD in children.    The study results, which were released online Oct. 28 and will be in the upcoming print issue of the Journal of Child Psychology and Psychiatry, also found that low folate levels may affect infants' head circumference.

Legumes are the best source of folate; lentils are a particularly good choice.  Most cereals are now folate-fortified, making them another good option.  And be sure to talk to your doctor about how much folate you should be ingesting before you become pregnant.