Myths vs facts: IgG Unverträglichkeitstest and blood sugar

IgG food intolerance tests are often marketed as a way to identify 'delayed' food sensitivities, but they lack scientific validity. IgG antibodies to foods are a normal immune response and indicate exposure, not intolerance. Major medical organizations, including the European Academy of Allergy and Clinical Immunology, advise against using IgG tests for diagnosis. There is no direct link between IgG test results and blood sugar levels. Blood sugar is regulated by carbohydrate intake, insulin, and physical activity, not by IgG antibodies. If you are concerned about blood sugar, validated methods like continuous glucose monitoring (CGM) or fasting glucose tests are appropriate. The evidence for IgG intolerance tests is best described as 'marketing' or 'unclear'. Consumers should be cautious and rely on evidence-based approaches rather than unproven commercial tests.