[Exercise and nutrition].
Aerobic exercise, particularly that of long duration and/or intensity, requires careful consideration of dietary aspects. The most important energy source are carbohydrates, and they must provide the majority of daily calories. Adequate hydration before and during exercise is the key to avoid hyperthermia. The consumption of glucose solutions during exercise is debatable, and electrolyte preparations are of no proven value, except in extreme circumstances.
Dietary Carbohydrates↗