Ever wonder how to optimize the metabolism boost you get from working out, without overloading yourself with empty calories like from those sports drinks? High fiber, low glycemic fare like Raisin Bran gets you out the door while a good solid protein like cottage cheese or tuna is a must after you've made it to the end of the jogging trail. Which means you can have your flakes and cheeses too. (Ok, that was awful. Please don't judge.)