What role does Leaky Gut Test play in Blutzucker?

A Leaky Gut Test measures intestinal permeability, typically via markers like zonulin or lactulose/mannitol. Mechanistic hypotheses suggest that increased permeability allows bacterial components (e.g., LPS) to enter circulation, promoting systemic inflammation that may worsen insulin resistance and thereby affect blood sugar. However, the evidence is weak: no large prospective studies demonstrate a causal link or clinical utility of this test for blood glucose management. The test is not validated for diagnosing diabetes or prediabetes. HbA1c and continuous glucose monitoring (CGM) remain the gold standards for glycemic assessment. A Leaky Gut Test may serve as a supplementary indicator of gut barrier dysfunction but should not guide blood sugar therapy. Caution is warranted against overinterpretation and unnecessary dietary restrictions without medical supervision.