As an essential dietary mineral, magnesium plays many important roles, including supporting cells to produce metabolic energy, optimal nerve function, smooth muscle relaxation-recovery, and maintaining normal heart rhythms. The glycine and lysine it contains have been shown to be effective transporters for minerals that facilitate absorption in the intestinal system. Dosage 2 tablets, once or twice a day, depending on dietary needs or as recommended by a health advisor. Nutritional Value & Ingredients 2 tablets provide on average: Magnesium (elemental) (from 2,000 mg magnesium glycinate lysine chelate) 200mg