Magnesium is involved in over 300 enzymatic processes, including the production of ATP. Magnesium helps maintain bone density, normal cardiac rhythmicity, pulmonary function, and aids in blood glucose regulation. Thorne Research provides magnesium as aspartate, citrate, and citrate-malate chelates. Dosage:1 to 2 capsules tid Each Capsule Contains DV% Magnesium (as Magnesium Citrate-Malate) 150 mg 37.5% Malic Acid (approximately from Magnesium Citrate-Malate) 300 mg * *Daily Value (DV) not established M272/ 90 A woman who is pregnant or nursing, or who might become pregnant, should consult a health-care practitioner before using this product. SPECIAL NOTE: Magnesium in high doses may have a laxative effect.