As with the other B Vitamins, Vitamin B3 or Niacin is important for the maintenance of good health. Like the other B Complex Vitamins, Niacin is important in energy production, and is essential for the conversion of dietary proteins, fats and carbohydrates. Niacin is also used to synthesize starch that can be stored in muscles and liver for eventual use as an energy source. Shop Vitasave.ca for the lowest prices in Canada on all Vitamin B3 supplements.