Gluten Intolerance and Celiac Disease   Gluten Intolerance and Celiac Disease can have similar symptoms. However, gluten intolerance does not classify as an auto-immune disease. A study by the University of Maryland identifies the pathogenic differences of the two disorders. The study also demonstrates that gluten sensitivity and celiac disease are part of a spectrum of gluten-related disorders. Gluten refers to certain proteins found in wheat, rye, and barley. People with Gluten Intolerance and Celiac Disease cannot tolerate the proteins found in foods containing these grains, and eating them can cause serious health problems, including malnourishment, chronic fatigue and damage to the small intestine.