IgG Unverträglichkeitstest: what can you do yourself?

IgG intolerance tests are often marketed to identify food sensitivities, but they lack scientific validation. Measured IgG antibodies typically reflect normal immune exposure, not intolerance. What you can do yourself: Keep a detailed symptom and food diary to spot patterns. Work with a professional (dietitian, doctor) on a controlled elimination diet: remove suspected foods for 2–4 weeks, then reintroduce systematically. Focus on evidence-based intolerances like lactose, fructose, or histamine, which can be confirmed via breath tests or medical diagnosis. Avoid unnecessary restrictive diets that risk nutrient deficiencies. The test alone does not provide reliable guidance for self-management.