What to watch with IgG Unverträglichkeitstest and Stress?

IgG food intolerance tests are not scientifically validated for diagnosing food sensitivities. Major medical societies (e.g., EAACI, AAAAI) advise against them because IgG antibodies reflect normal immune exposure, not intolerance. Stress can exacerbate gastrointestinal symptoms via the gut-brain axis, but IgG tests do not capture this. Relying on such tests may lead to unnecessary dietary restrictions, nutritional deficiencies, and increased anxiety. A more evidence-based approach includes symptom tracking, elimination diets under professional guidance, and stress reduction techniques. The evidence for IgG testing in this context is weak and primarily marketing-driven.