13 Vitamins (Choline Chloride, Vitamin A, Vitamin E, Vitamin C, Vitamin D3, Thiamine Mononitrate, Niacin, Calcium Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Folic Acid, Biotin, Vitamin B12) are organic compounds and essential nutrients the body cannot produce enough of on its own, so it has to get them from food. They are essential to normal metabolism, insufficient amounts in the diet may cause deficiency diseases.