Sugary snacks taste so good, but they aren’t so good for your teeth or your body. The candies, cakes, cookies, and other sugary foods that kids love to eat between meals can cause tooth decay. Some sugary foods have a lot of fat in them too. Kids who consume sugary snacks eat many different kinds of sugar every day, including table sugar (sucrose) and corn sweeteners (fructose). Starchy snacks can also break down into sugars once they’re in your mouth.