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For example, elevated IgA antigliadin is a proven useful marker of the immune reaction in the small intestine triggered by
gluten, in
celiac disease.
Basically, this means you most likely do have
celiac disease. This means nothing with gluten should be consumed or you will probably have a reaction. It's a food allergy to gluten - Gluten is in A LOT of foods. Pasta, Bread, Wheat (BEER for example). We are fortunate to have gluten free foods now.