👉 Gliadin is a glycoprotein found in the lining of the small intestine and other parts of the gastrointestinal tract. It plays a crucial role in the digestion process, as it helps to break down carbohydrates into simpler sugars that can be absorbed by the body's cells. Gliadin has been identified as an important component of the immune system and is involved in the development of autoimmune diseases, such as Crohn's disease and ulcerative colitis.