Our expert says:
The role of an endurance drink is to provide fuel to the exercising muscle in the form of a easily digested and absorbed carbohydrate such as glucose, sucrose, glucose polymers etc. The concentrations for all endurance 'sports' drinks should be between 6 to 8 % carbohydrate. This is to provide maximal amounts of carbohydrate without causing stomach discomfort. Thus most sports drinks provide very mcuh the same form and concentration of carbohydrate. Sodium and potssium are also important given the loss of these electrolytes in sweat. However, additional ingredients such as vitamins, minerals, branched chain amino acids, herbal extracts etc do not appear to play a significant role during exercise. Individual athletes need to experiment with different drinks to determine which drink they find works best for them provided the drink is providing 6-8% carbohydrate.
Are you using Epic Pro? this may be better for recovery than during exercise given the protein carbohydrate ratio.
Cramping may be a result of dehdration , inadequate carbohydraet consumption, significant sweat and electrolyte losses etc but there does not appear to be one definate cause to cramping.
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