Subjects subsequently diagnosed with celiac disease will have gluten-free diet instructions given by registered dietitian experienced in the gluten-free diet. Subjects will have follow-up in 3 months time from initial instruction to verify compliance.

To understanding the impact of undiagnosed celiac disease and the potential benefits, detection and treatment may have a substantial impact on the health of these subjects and the large numbers of Americans with undiagnosed celiac disease. The outcome measures we will be looking at are Quality of Life, GI Symptoms including diarrhea, constipation, abdominal pain, Tissue Transglutaminase level improvement after 12 weeks on a gluten free diet, bone density, understanding of a gluten free diet.