Guidelines for food allergy testing revised

Food allergy experts say submitting to an oral food challenge gives a more accurate diagnosis and rules out diagnosing allergies solely by skin-prick or blood tests.People with suspected food allergies may need to submit to an oral food challenge -- ingesting the food in a doctor's office while symptoms are assessed -- in order to receive an accurate diagnosis, according to new guidelines issued Monday by a consortium of food allergy experts led by the National Institute of Allergy and Infectious Diseases.

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