I have asked all the kids to bring a drink for after games and practices (chocolate milk or Gatorade)...carbs immediately following exercise greatly boost the recovery and stores of energy that can be built up and used over the season. A common misconception is to try and eat well before a game or practice and let the kids have "treats" after. This is in fact opposite to what should be done...well no treats before either... and a meal should be 3-4 hours prior to a game and only a light snack and fluids in the hour (s) prior to...the energy comes from the carbohydrate stores built up with overall proper, healthy eating. Building muscle and recovering carbs (energy) comes from what is eaten after exercise. Let them eat as much as they want after provided it is healthy and low in fat.