For years now carbs have a much maligned food for people watching their weight. But there's some new and exciting research out there that gives us a reason to put potatoes, corn and rice back in our diets. Experts have found that these foods contain resistant starch, which is a kind of fiber that may actually aid weight loss, especially when these foods are cooled. They increase your body's fat-burning ability and are filling so you're less hungry.

Because resistant starch is bulky, it takes up space in your digestive system which means you can't absorb it so it's not stored as fat like most carbs. That's a pretty impressive reason to be smart about the carbs you eat.