No one can argue about the important role a well-balanced diet plays with regard to your general health. It is essential for growth as well as health maintenance and no less important are the effects of diet on oral health. Not only do nutritional requirements change through life affecting the development of the teeth, jawbones and healthy membranes, the diet can also affect the mouth and teeth directly. For example, excessive sugars are not only bad for your health, they cause tooth decay—especially in young children. And while fluoride treatments will help protect tooth enamel, it can't overcome poor oral hygiene habits or the damage from an unhealthy diet.