4. Cut out fast food - it's an absolute must for having a flat tummy

Fast food is the worst culprit in the battle against stomach fat. It's convenient, sure, but it's loaded with calories and fat, and those calories and fat head straight to our "problem areas," our bellies and butts! Skip the fast food, or at least opt for healthier fast food options, like salads (without fried chicken or calorie-rich ranch on them) instead of fries.  But if you are really set on losing stomach fat fast, avoid the fast food altogether.