What role does IgG Unverträglichkeitstest play in blood sugar?

IgG food intolerance tests are often marketed to identify delayed food sensitivities, but their role in blood sugar regulation is not supported by scientific evidence. Blood glucose levels are primarily influenced by carbohydrate intake, insulin sensitivity, and metabolic health. IgG antibodies to foods are a normal immune response and do not reliably indicate metabolic dysfunction. Studies linking IgG test results to blood sugar improvements are scarce, methodologically weak, and often commercially biased. Major medical organizations, including the American Academy of Allergy, Asthma & Immunology, do not recommend IgG testing for food intolerance or metabolic conditions. Therefore, using an IgG test to guide dietary changes for blood sugar control is not evidence-based. Individuals concerned about blood sugar should focus on validated strategies: a balanced diet, regular physical activity, and medical guidance. Relying on IgG tests may lead to unnecessary dietary restrictions without proven benefit.