Foods that contain sugars of any kind can contribute to tooth decay. To control the amount of sugar you eat, read the nutrition facts and ingredient labels on foods and beverages and choose options that are lowest in sugar. Common sources of sugar in the diet include soft drinks, candy, cookies and pastries.
Your physician or a registered dietitian can also provide suggestions for eating a nutritious diet. If your diet lacks certain nutrients, it may be more difficult for tissues in your mouth to resist infection. This may contribute to gum disease. Severe gum disease is a major cause of tooth loss in adults. Many researchers believe that the disease progresses faster and is potentially more severe in people with poor nutrition.