The CDC, however, says young women under the age of 24 are the least likely to take folic acid, and that's the age group that needs it the most because those women comprise about a third of all births.
CDC: Young women should take folic acid
(KABC) Folic acid is an important B vitamin that helps prevent major birth defects. About 40 percent of women between 18 and 45 years old say they take folic acid supplements. That's a 12 percent jump since 1995.