800mg Magnesium Co-factor of enzymes in energy metabolism, Maintenance of electrical potentials in muscles and nerves, Component of bone. Remainder in soft tissue and blood. Risk of bone injury and osteoporosis, especially in females. Little research has been done on this but calcium supplementation may be important in reducing the chance of bone injury in women with menstrual irregularities. It has been suggested that magnesium may facilitate oxygen delivery to working muscles which may enhance aerobic capacity.
Intensive training can produce a negative magnesium balance such that supplementation is required.
Low blood magnesium can be associated with muscle spasms. Phosphorus Protein-rich food, Milk, Meat, Poultry, Fish, Eggs, Nuts, Legumes, Cereals Lowers blood calcium Rare Phosphate loading can delay the onset of anaerobic metabolism, reducing the build up of lactate, and delaying the onset of fatigue. However supplementation can increase isometric endurance and isokinetic strength at high speeds only. The effect of Copper supplementation on performance has not been examined. Chromium plays an important role in the potentiation of insulin, which is important in the transport of blood sugar and amino acids into cells.