Science in Sport GO Electrolyte contains a blend of an easily digestible & quick supply of carbohydrate for energy as well as important electrolytes (such as sodium) that are required to promote optimal hydration. Si S GO Electrolyte is mixed at appropriate concentrations of carbohydrate (i.e. 36 grams of carbohydrate mixed as a 6% solution), sodium (20 mmol/L) & fluid (a 500 ml serving) in order to achieve the combined aims of both carbohydrate delivery & hydration.