Evidence check: IgG Unverträglichkeitstest in the context of Langlebigkeit

IgG food intolerance tests are frequently marketed as tools to identify dietary triggers and improve health, but their scientific validity in the context of longevity is extremely weak. IgG antibodies to foods are a normal physiological response, often indicating prior exposure or tolerance rather than intolerance or disease. Major allergy and immunology societies (e.g., AAAAI, EAACI) explicitly advise against using IgG tests for diagnosing food sensitivities, as they lack reproducibility and clinical correlation. For longevity, key drivers include inflammation, metabolic health, and gut microbiome diversity—none of which are reliably assessed by IgG panels. Eliminating foods based on IgG results may lead to unnecessary dietary restrictions, nutrient deficiencies, and reduced diet quality, potentially undermining long-term health. Evidence: marketing/unclear. Caution: Do not use these tests to guide medical or dietary decisions without professional oversight.