The National Institutes of Health (NIH) is the primary Federal agency in the USA for conducting and supporting medical research. The National Institutes of Health (NIH) spends over 27 billion dollars (US) annually in medical research. The National Institutes of Health (NIH) mission is the application of medical and scientific knowledge to extend healthy life and reduce the burdens of illness and disability.
According to the U.S. National Institutes of Health (NIH) "Magnesium is the fourth most abundant mineral in the body and is essential to good health. Magnesium is needed for more than 300 biochemical reactions in the body. It helps maintain normal muscle and nerve function, keeps heart rhythm steady, supports a healthy immune system, and keeps bones strong. Magnesium also helps regulate blood sugar levels, promotes normal blood pressure, and is known to be involved in energy metabolism and protein synthesis. There is an increased interest in the role of magnesium in preventing and managing disorders such as hypertension, cardiovascular disease, and diabetes" (NIH, 2006. Magnesium. National Institutes of Health. Office of Dietary Supplements. http://www.ods.od.nih.gov/factsheets/magnesium.asp)