Product Description: Niacin is necessary for protein metabolism, energy production and normal nervous system function. Niacin has a strong effect on the circulatory system causing some people to experience flushing, a sensation of heat and reddening. With today?s lifestyle, it is often difficult to get proper nutrition, making Natural Factors Niacin tablets your nutritional insurance to fortify your daily diet. Suggested Usage: 1 tablet 1-5 times per day or as directed by a health professional. Ingredients: Contains no artificial preservatives, color or sweeteners; no dairy, starch, wheat or yeast. Supplement Facts: Niacin(vit b3) Amount per serv 100mg, % Daily 500% Other Ingredients: Cellulose Note: High doses of a single B vitamin should be taken with a B complex Warning: In case of history of ulcer, gallbladder or liver disease, consult a physician.