Do not ruin your eating experience with negative thoughts in your head. "Instead of fully enjoying what you're eating, you'll plan to pay penance by exercising more or skipping your next snack or meal," says May, author of Eat What You Love, Love What You Eat. "As a result, exercise becomes punishment and you feel you have to earn the right to eat." Often, the next thought is, "Well, I might as well eat it all then!" Instead, she recommends eating what you love mindfully and without guilt or regret.