Gluten Allergy or Gluten Intolerance
A gluten allergy is caused by gliadin, a glycoprotein that, along with glutenin (another protein), helps to form the gluten protein. Gluten is found in wheat and other related grains such as barley, oats, and rye. Gliadin is also one of the major allergens associated with wheat allergies and a trigger for celiac disease, a serious autoimmune disorder of the small intestine.