MAGNESIUM PLUS by SPONSER® is a bioavailable organic mineral salt. Magnesium is an essential mineral and is one of the 5 electrolytes. In addition to magnesium, potassium and soluble dietary fibers, the product also contains vitamins C and B6, which reduce tiredness and fatigue. Known as a common deficiency element, not only athletes often have an increased need for magnesium. Magnesium helps to maintain normal muscle function and supports normal energy metabolism and electrolyte balance.