Confusingly, no. Some sports drinks are ‘hypotonic’, meaning it contains a less concentrated carbohydrate solution (1-3%). This will promote water absorption, but provides little or no energy boost.
At the other end of the scale are ‘hypertonic’ drinks, with a carbohydrate concentration greater than 10%. These will have a slow gastric emptying rate, thus decreasing fluid absorption. Energy drinks and soft drinks fall into this category, which makes them unsuitable for use during exercise.
An isotonic drink is the ideal choice for rehydration during fitness activities, sports and adventure activities.