Half of all adults referred to a specialist clinic with suspected food allergies were found to have no food allergy, according to research.
A study looked at 214 adults referred to a German outpatient allergies clinic at a university hospital with suspected food allergies.
Following comprehensive diagnostics, including allergological history-taking, IgE serology and challenge tests, only 51 per cent were found to have an IgE-mediated food allergy. Almost half of this group had previously experienced food-induced anaphylaxis.
The authors conclude that only comprehensive testing can identify those patients prone to potentially-fatal anaphylaxis while protecting others from needless dietary restrictions and excessive concerns about a ‘non-existent’ allergy.
Deutsches Ärzteblatt International (2008) 105: 715-23