Can IgG Unverträglichkeitstest help with blood sugar?

IgG food intolerance tests are often marketed for digestive issues, fatigue, or weight management, but there is no robust scientific evidence that they help with blood sugar control. Blood sugar regulation depends primarily on carbohydrate intake, insulin sensitivity, physical activity, and medication. IgG antibodies against foods are a normal immune response to frequent dietary components and do not reliably indicate intolerance or metabolic dysfunction. Major allergy and gastroenterology societies (e.g., EAACI, DGAI) advise against using IgG tests for diagnosing food intolerances. Some proponents suggest that eliminating foods with high IgG levels might reduce low-grade inflammation and indirectly improve glycemic control, but well-designed clinical trials are lacking. For improving blood sugar, evidence-based strategies such as a balanced diet with attention to glycemic load, regular exercise, and medical monitoring are far more effective. Relying on an IgG test can lead to unnecessary dietary restrictions and may delay proper medical evaluation. MyBody-X offers IgE allergy tests but not IgG tests, reflecting the lack of scientific support for this approach in metabolic health.