The science in sport go electrolyte sports fuel fuel is the complex carbohydrate energy fuel for high energy performance available in a range of great tasting flavours and is ideal when energy requirement is high the sis go recovery fuel is made from a very high specification maltodextrin which is over 98 glucose polymers perfect for long work outs carbo loading or when you need that extra boost this energy fuel is very versatile and can be used at high concentrations