Natural Factors Magnesium Oxide - 250 mg - Known as the "anti-stress mineral", Magnesium works as a catalyst with energy-producing enzymes. Helping to burn fat and produce energy, Magnesium can also help produce a healthier cardiovascular system, and help prevent heart attacks. Approximately half of the body’s magnesium stores are found inside the cells of body tissues such as organs. The other half is found combined with calcium and phosphorus in our bones. Magnesium helps promote absorption of other minerals such as calcium, phosphorus, sodium and potassium, and plays an important role in the development and maintenance of healthy bones and teeth. Natural Factors Magnesium Oxide helps maintain healthy muscle function and good health. One caplet two times daily helps the body metabolize carbohydrates, fats and proteins, and helps in the development and maintenance of healthy bones and teeth. It is an important supplement for the prevention of magnesium deficiency.