Folic acid helps the body by producing and maintaining new cells. It also protects DNA against changes that may lead to cancer, according to Drugs.com.
Folic acid is a type of B vitamin. It is found naturally in foods such as beans, peas, oranges, lentils, liver, beets and spinach. It is normally considered a vitamin, but it is also used as a medication to treat certain types of anemia. It does not cure vitamin B-12 deficiency, notes Drugs.com. Folic acid should not be taken by people with kidney disease or alcoholics. Possible side effects include digestive issues, sleep problems and mood disturbances.