About half of the bodys magnesium is found in the bones, the other half is found inside cells, tissues, and organs. Magnesium helps assist normal nerve and muscle function supporting both the immune system and the cardiovascular system. Because magnesium is absorbed in the intestines, the health of the digestive system and kidneys affect the bodys magnesium status. Magnesium works in conjunction with calcium and a deficiency in one can result in lower levels of the other. Many nutritionists recommend a 2:1 ration of calcium to magnesium.* 1/4 tsp = 390 mg of Magnesium *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.