Kids who go directly from school to an activity need to pack an extra snack in their gym bag or backpack. Either way, kids are going to eat what's available, the key is to plan ahead and keep plenty of nutritious foods on hand that are quick and portable. Kids can't make up for missed meals before they go out to play or practice, so the goal is to give them some fuel before hand and make sure they eat regular meals. Choose nutritious foods that kids like and that are easy and fun. Use a cooler and stock it with pudding, flavored milk or yogurt and some cut up fruit.
Kids are much more likely to eat apples or oranges that have been cut into wedges.
I work with a young girls' swim team. Last week I wanted them to know that milk is a wonderful food for right after exercise, so I packed a cooler with fun, flavored single-serve containers of milk. Bringing healthy snacks sets a good example.