sports drinks are only healthy under narrow circumstances.  such as after working out for over 2 hours (or 1 hour on a 35C day), or when you are seriously dehydrated due to diarrhoea.  Otherwise they cause a surplus of electrolytes which result in bloating and elevated blood pressure.  Not to mention the simple carbohydrates your body should not be consuming unless you are working out for 2+ hours.  And kids just do not need caffeine.  Really stupid to market these specialty drinks alongside coke and sprite imho.