Myths vs facts: IgG Unverträglichkeitstest and Blutzucker

The IgG food intolerance test is often marketed as a tool to identify food sensitivities that may affect blood sugar levels. However, this test lacks scientific validation. IgG antibodies indicate immune exposure, not pathology. Elevated IgG levels to specific foods are common in healthy individuals and do not correlate with intolerance symptoms or blood sugar dysregulation. Blood sugar is primarily influenced by carbohydrate intake, insulin sensitivity, and physical activity. Professional guidelines, including those from the European Academy of Allergy and Clinical Immunology, advise against using IgG tests for diagnosis. For managing blood sugar, validated methods such as continuous glucose monitoring, HbA1c testing, and controlled elimination diets are recommended. MyBody-X does not offer IgG tests but provides DNA-based metabolism analyses, which also have limited clinical actionability. Consumers should be cautious of marketing claims linking IgG results to blood sugar control.