yes you can bring in food , gator aid , crackers , grapes and apples are a good to have with you when you need a quick sugar crash fix ,with the heat and all the walking you sugar can drop fast and some times food carts are not handy or open , and we try to find a shady spot away from everybody to make the kids wind down and relax it helps to stop the melt downs , and all so disney has a restriction on the size of bags you can bring in , we found a backpack with wheels on it at wallmart its nice we pack it with munches for a cary on for the wait at the airport and the plane ride ( just put everything in ziplock bags ) and at dinsey you can carry it on the rides and then wheel behind you when you walk