What role does IgG Unverträglichkeitstest play in Blutzucker?

IgG food intolerance tests are often marketed for blood sugar issues, but the scientific evidence is weak. These tests measure IgG antibodies to foods, which are typically a normal immune response and not indicative of intolerance or allergy. Studies show no consistent link between IgG reactivity and blood sugar regulation. Some practitioners claim that an IgG-based elimination diet can improve blood glucose, but robust randomized controlled trials are lacking. Major health organizations (e.g., DGE, EAACI) advise against such tests due to risk of unnecessary dietary restrictions and nutrient deficiencies. For blood sugar management, evidence-based approaches like balanced nutrition, physical activity, and medical assessment (HbA1c, fasting glucose) are recommended. The IgG test has no proven role in blood sugar control and should not be used for diagnosis or therapy.