Is Zöliakie Test useful for allergy?

A celiac disease test (e.g., HLA-DQA1 variant) is not useful for diagnosing food allergies. Celiac disease is an autoimmune condition triggered by gluten, whereas allergies involve an immediate IgE-mediated immune response. The genetic test for HLA-DQA1 (rs2071559) indicates risk only – most carriers never develop celiac disease. Definitive diagnosis requires antibody tests and intestinal biopsy. IgG-based food sensitivity tests, often confused with celiac testing, are not considered reliable by mainstream medical guidelines for allergies or intolerances, as IgG antibodies can be present without intolerance. For true allergies, IgE tests, skin prick tests, or controlled challenges are required. Conclusion: A celiac test is not appropriate for allergy assessment and may lead to misinterpretation.