Myths vs facts: Leaky Gut Test and Müdigkeit

The provided context does not contain specific information linking leaky gut tests to fatigue. The concept of 'leaky gut' (intestinal permeability) is controversial in mainstream medicine; no home test is clinically validated for diagnosis. Fatigue has numerous potential causes (e.g., iron deficiency, sleep disorders, stress). A direct-to-consumer leaky gut test is not a reliable diagnostic tool. Evidence for such tests is mostly marketing-based or unclear. Persistent fatigue warrants a medical evaluation rather than self-testing.