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Wheat allergy is an immune system response to proteins found in wheat. When someone with a wheat allergy ingests wheat or inhales wheat flour, their immune system overreacts and produces antibodies to fight off the wheat proteins. This can cause a range of symptoms, including digestive issues, skin rash, and respiratory problems.
Symptoms of wheat allergy can vary from person to person and can include:
The treatment for wheat allergy involves avoiding wheat and wheat-containing products. This can be challenging as wheat is found in many common foods, including bread, pasta, cereals, and baked goods. Reading food labels carefully and avoiding cross-contamination is important to prevent accidental exposure to wheat.
In some cases, antihistamines and other medications may be used to manage the symptoms of a wheat allergy. In cases of anaphylaxis, emergency treatment with epinephrine (adrenaline) may be required.
Wheat allergy can be diagnosed through a combination of a physical examination, medical history, and allergy testing. An allergist can help determine if someone has a wheat allergy and develop a plan for managing the condition.
If you have wheat allergy, exposure to a wheat protein primes your immune system for an allergic reaction. You can develop an allergy to any of the four classes of wheat proteins — albumin, globulin, gliadin and gluten.
Some sources of wheat proteins are obvious, such as bread, but all wheat proteins — and gluten in particular — can be found in many prepared foods and even in some cosmetics, bath products and play dough. Foods that may include wheat proteins include:
If you have wheat allergy, it's possible you might also be allergic to barley, oats and rye. Unless you're allergic to grains other than wheat, though, the recommended wheat-free diet is less restrictive than a gluten-free diet.
Some people with wheat allergy develop symptoms only if they exercise within a few hours after eating wheat. Exercise-induced changes in your body either trigger an allergic reaction or worsen an immune system response to a wheat protein. This condition usually results in life-threatening anaphylaxis.
Avoiding wheat proteins is the best treatment for wheat allergy. Because wheat proteins appear in so many prepared foods, read product labels carefully.
Emergency medical care is essential for anyone who has an anaphylactic reaction to wheat, even after receiving an injection of epinephrine. Call 911 or your local emergency number as soon as possible.
Scientists are working on several types of immunotherapy to treat food allergies. Immunotherapy exposes you to small amounts of the allergic substance and then increases that exposure over time. The hope is that your body will become desensitized to the allergen, and you'll have fewer or no symptoms.
Several small clinical trials have been done on an oral form of immunotherapy for wheat allergy that showed reduced allergy symptoms. More research is needed, however.