We at Discount Vitamin believe the guidance of a nutrition health professional is essential in order to maximize the effectiveness of our professional strength supplements. We offer an extensive assortment of specialized vitamins and minerals, from ascorbic acid to zinc. We also carry single nutrients, including calcium, iron, magnesium, phosphorus, potassium, sodium, copper, manganese and selenium, as well as vitamin A, vitamin D, thiamin and riboflavin. We also sell niacin, pantothenic acid, vitamin B6, vitamin B12 and folate supplements.