Children need strong, healthy teeth to chew their food, speak clearly, and have an attractive smile. What's more, a good diet is essential for a child's growth and development. Almost all foods, including milk and vegetables, have some type of sugar, which can contribute to tooth decay. To help control the amount of sugar your child consumes, always try to read food labels and choose foods and beverages that are low in added sugars. Also, select beverages such as water, that hydrate and contribute to good nutrition.