Magnesium is a mineral that is critical for energy production and metabolism, muscle contraction, nerve impulse transmission and bone mineralization. It is a required co-factor for an estimated 300 enzymes. Among the reaction catalyzed by these enzymes are fatty acid synthesis, protein synthesis and glucose metabolism. Magnesium status is also important for regulation of calcium balance through its effects on the parathyroid gland. Magnesium offers another option, besides Calcium for supporting bone health. Magnesium plays an essential role in maintaining bone mineralization, and is also involved in muscle contractions and nerve impulses. Magnesium 500mg (from Magnesium Oxide) Suggested Use: 1-2 capsules per day as desired, or as directed by your physician. Qty 120