Exercise is great for your health. But if you're looking to lose weight in the new year, you should know this: How much you eat ultimately matters more than how much you work out.
Like a lot of Americans, I've got some extra pounds to shed. So about two months ago, I started tracking everything I eat using an app called Lose It! It's one of several apps out there — like MyFitnessPal and MyPlate – designed to help you watch your diet. When I eat something, I can look up how many calories it contains in the app. If my food isn't listed, I add it myself.