"Don't do it in the heat of the moment," says Fung. Instead, decide up front how many treats you're allowed to have each week. By treats, of course, we mean things that are definitely not good for you. We're not here to quibble about how often you should swap out pasta for brown rice; this is about how to handle junk. And avoiding junk doesn't have to be about losing weight or eating as few calories as possible. Even if you're just trying to maintain a balanced, healthy diet full of a good mix of carbs and fats, you should still be mindful of things like pastries and candies. And Fung says that simply keeping tabs on your indulgences can go a long way.