Do you add sugar to your foods? You might be surprised at how much sugar is hiding in foods and you don't even realize it. Added sugar provides calories with no added nutrients and can damage your metabolism in the long run. But how much is too much? Can you eat a little bit of sugar each day without harm, or should you avoid it as much as possible? Marcia Richards, RD, Registered Dietitian with BID Plymouth, is here to help you better understand where sugar fits into your diet.