A pigmentary disturbance in the macula lutea lying slightly lateral to the center of the retina in the eye, which brings the loss of central visual acuity. An essential mineral. The chief function of magnesium is to activate certain enzymes, especially those related to carbohydrate metabolism. Another role is to maintain the electrical potential across nerve and muscle membranes. It is essential for proper heartbeat and nerve transmission.
Magnesium controls many cellular functions.
Magnesium is closely related to calcium and phosphorus in body function. The average adult body contains approximately one ounce of magnesium. Although about 70 percent of the body's magnesium is contained in the teeth and bones, its most important functions are carried out by the remainder which is present in the cells of the soft tissues and in the fluid surrounding those cells. An essential mineral found in trace amounts in tissues of the body. Adults normally contain an average of 10 to 20 milligrams of manganese in their bodies, most of which is contained in bone, the liver and the kidneys.