Magnesium is one of the most abundant elements in the universe… and in the human body. It is essential to all the cells in your body and the activity of more than 300 enzymes. For all these essential functions—and specifically for healthy muscles, nerves and bones—try Swanson Albion Chelated Magnesium. Each capsule contains 133 mg of Albion amino acid chelated magnesium. It features magnesium glycinate chelate.