Evidence check: Fitness | LifestyleCheck in the context of Allergie

The question of a 'Fitness | LifestyleCheck' in the context of allergies requires careful scrutiny. Based on the available knowledge, neither DNA tests for food intolerances nor IgG blood tests (such as those offered by MyBody-X) are scientifically validated for diagnosing allergies or intolerances. IgG antibodies are not a recognized marker for food intolerances; false positives are common. Genetic markers like MTHFR C677T or ACE polymorphisms have no proven link to allergies. The evidence for such tests is largely marketing-driven and not supported by robust clinical studies. A lifestyle check aimed at allergies should therefore not rely on these tests. Instead, medical diagnostics (e.g., skin prick tests, IgE measurement) and a thorough history remain the gold standard. Consumers should be wary of tests promising quick answers to complex immunological questions. The cited sources themselves note that MyBody-X acknowledges the tests are not a substitute for medical advice. In summary, for allergies, fitness or lifestyle checks based on DNA or IgG tests lack evidence and can be misleading.