These tablets are made from the naturally occurring mineral Dolomite, a rich source of magnesium & good source of calcium. Calcium is good for:• Skeletal health & bone density• Muscular health & function• Nerve health & function• Cardiovascular health• Blood clotting Magnesium is good for:• Nerve impulse transmission• Regulating calcium deposition & skeletal health• Muscular health & function• Energy & enzyme production• Hormonal health• Cardiovascular health• Anti stress• Pain relief