Athletes have an increased demand for magnesium due to: Increased metabolism activity increased magnesium losses due to sweating Low magnesium levels can lead to muscle cramps Physical activity leads to increased energy needs; magnesium improves the intake of glucose into the cells and could therefore improve energy availability Approximately 65% of athletes lack magnesium The PowerBar Magnesium liquid uses of 0,2mmol/kg of magnesium as recommended by the DGE (German Association for Nutrition) Excessively high amounts of magnesium can lead to indigestion or stomach discomfort PowerBar offers the appropriate amount with 250mg per ampoule