Gliadin is one of the major proteins of gluten; the detection of antibodies to gliadin is useful in diagnosing celiac disease. Celiac disease results from an immune-mediated inflammatory process that occurs when someone digests food like wheat, rye, or barley proteins. The detection of the gliadin antibodies is useful in aiding in the diagnosis and monitoring for certain gluten-sensitive enteropathies, such as celiac disease and dermatitis herpetiformis.