10. Swear off forbidden foods

Why that's BS: "We tend to be in 'all or nothing' mode when we diet and never seem to find a middle ground," says Batayneh. "You have to realize that you can’t have pizza, French fries, and chocolate cake all in the same day, but—with careful planning—you can enjoy these foods when they are presented to you. Just don’t go for seconds and share if you can." In fact, research shows that moderately indulging in "forbidden foods" is what keeps people from bingeing on the stuff.

Related: The New Weight-Loss Rules

Aug 22, 2013

25 Worst Diet Tips Ever

Ridiculously bad diet advice you need to ditch.