Folic acid is a form of folate (a B vitamin) that everyone needs. If you can get pregnant or are pregnant, folic acid is especially important. Folic acid protects unborn babies against serious birth defects. You can get folic acid from vitamins and fortified foods, such as breads, pastas, and cereals. Folate is found naturally in foods such as leafy greens, vegetables, oranges, and beans.