Vitamin B3 (Niacin) helps the body utilize proteins, fats and carbohydrates for energy, and also supports nerve and skin health. Niacin may help the body's efforts to lower cholesterol*. Niacin assists in the functioning of the digestive system, skin, and nerves. The eight vitamins that make up the B complex are water soluble, meaning the body does not store excess amounts, with the exception of vitamin B12, which is stored in the liver. Rather, unused B vitamins are excreted through urine. This means you need a continuous supply of niacin and the other B vitamins from the diet.*