Do you feel particularly susceptible to tooth decay? If so, you are not alone. Many Americans continually develop cavities despite feeling as though they eat well, brush thoroughly, and floss twice daily. For these individuals, tooth decay may be a sign that there is a larger underlying problem: Celiac Disease. Celiac Disease is a genetic disorder that may inhibit normal absorption of nutrients in the small intestine. Inadequate nutrient absorption may lead to several deficiencies, including weak tooth enamel.