Celiac disease is a genetic condition in which consuming gluten (a protein found in wheat, barely, and rye) leads to damage of the small intestine. Celiac disease can cause symptoms such as abdominal pain, bloating, and diarrhea, and over time can lead to nutrient deficiencies and other health problems. Currently, the only proven therapy is a gluten-free diet. Scientists and doctors are looking for new options for people with celiac disease.