Magnesium citrate has a very high level of bioavailability and therefore is more easily absorbed by the body compared to other forms of magnesium.* This mineral is critical for energy production and metabolism, muscle contraction, nerve impulse transmission and bone mineralization. It's a required co-factor for an estimated 300 enzymes. Among the reactions catalyzed by these enzymes are fatty acids synthesis, protein synthesis and glucose metabolism. Magnesium is present in relatively large amounts in the body. Researchers estimate that the average person's body contains about 25 grams of magnesium, and about half of that is in the bones. Magnesium is important in more than 300 chemical reactions that keep the body working properly. People get magnesium from their diet, but sometimes magnesium supplements are needed if magnesium levels are too low. Dietary intake of magnesium may be low, particularly among women. Magnesium status is also important for regulation of calcium balance through its effects on the parathyroid gland.* *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.