My dad is a former personal trainer, and works out harder than anyone else I've ever met. He goes to the gym at least twice a day, and can lift over 300lbs. He is also a ham. His stomach is hard as a rock, but looks like a barrel is strapped to his midsection. You know why? Because he also has the worst diet I have ever seen. He drinks a liter of Coke a day, and shovels an astounding amount of junk into his mouth. He buys a box of baked goods almost every day from the supermarket and eats most of it himself. It's disgusting.  You can't out exercise a bad diet. You just can't.