A B Vitamin is a group of vitamins that are essential for human health. Niacin, Folic Acid, Biotin, and Folate are all members of this group. Niacin is a water-soluble vitamin that helps the body convert food into energy. Folic Acid is a B Vitamin that helps the body make healthy new cells. Biotin is a B Vitamin that helps the body metabolize fats and proteins. Folate is a B Vitamin that helps the body form red blood cells. All of these vitamins are important for maintaining good health.