Thanks for your question. There is no debating that sports drinks are a booming business, thanks
to the power of advertising. They certainly are popular, but are they necessary for children?
First of all, what is in a sports drink? They basically are expensive diluted soft drinks. They do
contain significant carbohydrates (about 60 calories per cup), but little sodium or potassium, and
generally have little other nutritional value.
Sports drinks do have a place, however, but only when participating in a high-intensity
endurance event that lasts longer than 90 minutes, like a marathon or triathlon. For most
children, therefore, a sports drink is really not necessary, especially as a fluid replacement at
There are three major drawbacks to the continual use of sports drinks like you describe in your
question. The first is obesity since these drinks are rich in carbohydrates (that is why they taste
so good). The second is drinking too many sports drinks can erode the teeth due to the acidity -
not the sugar. And third, sports drinks are more expensive than the best fluid replacement of
them all - water.
Yes, plain cool water is the fluid of choice when exercise does not last longer than 60 to 90
minutes. And that includes most situations, even a tough practice session, a hard-fought football
game, or a track meet. You don't need an energy source in the fluid you drink to rehydrate.
Sports drinks should be reserved for those individuals who exercise continuously for more than
90 minutes or have heavy sweat losses."