Foods you most likely eat every day could be draining your energy. The list includes white bread, fast food burgers, and Coke (caffeine doesn't outdo the sugar).
But the list also include FROZEN YOGURT. I feel so betrayed. FroYo you can't do this to us!! You're supposed to be better than ice cream!! You were the chosen one!! It was said that you would destroy the Sith, not join them!!! Bring balance to the force, not leave it in darkness!!!
Hang on, I may be getting my wires crossed here. Sorry, I ate a bunch of frozen yogurt today.