Folic acid can be purchased as an over-the-counter dietary supplement in tablet and capsule form. Folic acid supplements may prevent neural tube defects and are often recommended during pregnancy.
Folic acid is a synthetic form of Vitamin B9, reports the University of Maryland Medical Center. B vitamins help to energize the body by converting carbohydrates into glucose. Folic acid and Vitamin B12 work together to create red blood cells. Folic acid deficiency can cause forgetfulness, gingivitis, diarrhea and shortness of breath. Folic acid supplements made by Nature's Bounty, Twinlab, Sundown, Superior Source and Futurebiotics may be ordered from the Walgreen's website.