What to watch with IgG Unverträglichkeitstest and Langlebigkeit?

IgG intolerance tests are often marketed as tools for 'healthier eating' or even 'longevity.' However, the scientific evidence is weak: elevated IgG levels usually reflect normal immune exposure to frequently eaten foods, not true intolerance or allergy. Medical societies advise against these tests because they can lead to unnecessary dietary restrictions, nutrient deficiencies, and anxiety. A direct link to longevity is unproven. For genuine health insights, rely on validated biomarkers (e.g., lipids, glucose, vitamin status) and professional medical guidance – not questionable IgG panels.