What role does IgG play in blood sugar?

The role of IgG in blood sugar is not directly addressed in the provided context. The information discusses IgG in the context of food intolerance testing (KombiCheck allergy+intolerance), stating that food-specific IgG is a normal immune response to dietary exposure and is not evidence-based for diagnosing intolerance or allergy. There is no established mechanism linking IgG to blood sugar regulation. IgG tests are often marketed as part of 'food sensitivity' panels, but evidence for their utility in metabolic parameters like blood glucose is lacking. For blood sugar management, validated methods such as fasting glucose, HbA1c, or continuous glucose monitoring (CGM) should be used. IgG testing for foods is not recommended for this purpose and may lead to unnecessary dietary restrictions. Evidence: marketing/unclear.