What to watch with IgG and Blutzucker?

The combination of IgG testing (food antibodies) and blood sugar is not well supported by evidence. IgG tests are often marketed as 'food sensitivity' tests, but they measure IgG levels that can appear after normal food intake in healthy individuals. No robust studies show that IgG-mediated reactions significantly affect blood glucose. For blood sugar management, established markers like fasting glucose, HbA1c, and postprandial glucose are far more relevant. A high IgG level to a specific food does not mean that food raises or lowers blood sugar. Those aiming to optimize blood sugar should focus on evidence-based strategies: carbohydrate-aware diet, exercise, stress reduction, and medical evaluation (e.g., for insulin resistance). IgG tests can mislead and cause unnecessary dietary restrictions. Caveat: No diagnostic value for blood sugar issues. Evidence grade: marketing/unclear.