Myths vs facts: IgG Unverträglichkeitstest and Langlebigkeit

IgG food intolerance tests are frequently marketed to identify food sensitivities and even promote longevity, but the scientific evidence does not support their use. IgG antibodies to foods are a normal physiological response to food proteins and do not indicate intolerance or allergy. Major medical organizations, including the European Academy of Allergy and Clinical Immunology, advise against these tests because they can lead to unnecessary dietary restrictions and nutritional deficiencies. Claims that eliminating IgG-positive foods can extend lifespan are not backed by rigorous human studies. Longevity is influenced by well-established factors such as a balanced diet, regular physical activity, adequate sleep, and stress reduction. The IgG test is a commercial product with no proven role in longevity or personalized nutrition. Consumers should be cautious and rely on evidence-based approaches.