Magnesium plays an essential role in over 300 enzyme reactions in the human body. All refined foods are lacking ionic magnesium, as well as most other essential minerals. Many Americans eat a highly refined diet and are, as a result, deficient in magnesium. Some important functions of magnesium are: Regulates calcium transport and deposition into bone Necessary for tissue growth and development Supports immune system health and function A primary electrolyte along with calcium, potassium, sodium, and chloride Helps in the conduction of nerve impulses and the relaxation of muscle tissue Calcium and potassium stimulate muscle contraction - magnesium makes muscles relax. This is very important for heart function as the body needs ample stores of ionic magnesium to allow for proper heart muscle relaxation. Eidon Ionic Liquid Minerals are All Natural, Highly Bioavailable and contain NO sugars, starch, artificial flavors, colors or preservatives. Safe for all ages.