spandex said:thanks for the insite I was just asking because a mate is raving about some drink in the LBS that he loves. Im all for water good old water.
Yes, you're talking about hypertonic solutions - they are absorbed by the body more quickly than water. Most sports drinks seem to be isotonic or designed to be made up into isotonic solutions though, which is the same as water in terms of the speed of absorbsion. Most sports drinks do contain 'electrolytes' and these are the minerals that you loose in sweat. They are useful for body function (and avoiding cramp) but are no more quickly absorbed than those in water (the amounts in water depends on which water you drink) unless they are within a hypertonic solution. It depends why you want to use a sports drink - do you need it for fuel (KCals in the form of carbohydrate) or rehydration/replenishing mineral salts? (a hypertonic solution, without any energy/KCals in it will be better for this). If you want both; the energy and to replenish any lost salts then an isotonic drink is the way to go - but it won't rehydrate you any more quickly than water as it's a compromise between fuel and rehydration.walker said:..also water isn't as fast as some other sports drinks to be absorbed into the body thus taking longer to re-hydrate yourself