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How does an elimination diet help diagnose food allergies?

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Under your doctor's direction, you avoid foods suspected of causing the allergy, like eggs. If you eliminate a specific food from your diet and your symptoms go away, the doctor can almost always make a diagnosis. If you then eat that same food (again, under your doctor's direction) and the symptoms come back, then your diagnosis is confirmed. But you can't use this process if you have severe reactions (in which case, you should avoid that food entirely) or if they don't happen all the time.

SOURCES:

The National Institute of Allergy and Infectious Diseases: "Fact Sheet: Food Allergy and Intolerances."  UpToDate. American Academy of Allergy Asthma & Immunology.

Reviewed by Brunilda Nazario on October 29, 2018

SOURCES:

The National Institute of Allergy and Infectious Diseases: "Fact Sheet: Food Allergy and Intolerances."  UpToDate. American Academy of Allergy Asthma & Immunology.

Reviewed by Brunilda Nazario on October 29, 2018

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