Celiac disease, wheat, harp, a protein found in grains such as rye species taken by the digestive system due to an abnormal immune system reaction to the. Celiac disease is more common than had been supposed, and the world's population of about 4 percent′ü affected with the disorder. When gluten-containing foods consumed by the digestive system and absorbed by the structures, particularly in the small intestine called the villi [...]


