Niacin, vitamin B3, is one of 8 B vitamins. It is a water-soluble vitamin involved in over 500 chemical reactions in the body and comes in several forms including niacin, also known as nicotinic acid, niacinamide, known as nicotinamide, and inositol hexaniacinate, all of which have slightly different properties and indications even though they are collectively called B3 vitamins. B vitamins help the body convert food (carbohydrates) into fuel (glucose), to produce energy. Niacin is the form specifically used for…