How are IgG Unverträglichkeitstest and Blutzucker related?

IgG intolerance tests measure IgG antibodies to foods but are often marketed for identifying food intolerances. There is no established direct link between IgG levels and blood sugar. Blood glucose is primarily influenced by carbohydrate intake, insulin sensitivity, and hormones like cortisol. IgG tests are not validated to predict or manage blood sugar responses. Evidence for their clinical utility in this context is lacking; they are considered investigational or marketing tools. For blood sugar management, established methods like continuous glucose monitoring (CGM) or HbA1c testing are recommended. Caveat: relying on IgG tests may lead to unnecessary dietary restrictions without proven benefit for glycemic control.