Supports carbohydrate metabolism to provide the body with energy Helps support healthy blood lipid levels Supports cardiovascular health Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months. Swanson Niacin is an essential vitamin for supporting cardiovascular function by promoting healthy lipid levels. It also promotes carbohydrate metabolism, helping to supply the whole body with energy. These high-potency capsules deliver 500 mg of niacin as a convenient way to get a healthy supply of niacin every day.