Allergies involve hypersensitivity reactions and the production of specific immunoglobulin E (IgE) antibodies directed against grains such as wheat and rye. These antibodies may cause some symptoms similar to those caused by celiac disease, but they will only do so for a short time after you eat the food to which you are allergic or sensitive. The reaction may be mild or severe, but it is limited and does not cause damage to the lining of your intestine how celiac disease does. If you feel that you may have a wheat or other grain allergy, talk to your doctor about getting tested for these allergen-specific IgE antibodies.