Try some water. It has 0 calories, no potentially harmful additives and best of all it’s a whole lot less expensive than the alternatives. Sports drinks or energy drinks are not necessary for the exercise that most kids are doing, and can potentially cause problems. Many of these drinks are loaded with unnecessary calories and are contributing to the obesity epidemic. When I see a child who has weight issues the first thing I have them do is cut out all juice, soda and sugary drinks and replace them with water and low-fat milk.
So before you hit the summer heat (hopefully soon!) fill up those bottles with some H2O.
You can read more about the new AAP guidelines regarding sports and energy drinks for children here.