What role does Leaky Gut Test play in fatigue?

The role of a 'Leaky Gut' test in fatigue is not scientifically well-established. 'Leaky gut' refers to a proposed increase in intestinal permeability, which might allow bacterial fragments into the bloodstream and trigger inflammation, potentially contributing to fatigue. However, there is no validated, standardized clinical test for leaky gut. Most home tests measure markers like zonulin or LPS-binding protein, but their reliability and clinical relevance are debated. Fatigue is multifactorial, and attributing it solely to gut permeability is an oversimplification. Evidence linking leaky gut to fatigue is weak, mostly mechanistic or from animal studies. Using such a test may lead to unnecessary worry or unproven treatments. A medical workup for fatigue should include standard blood tests, sleep assessment, and nutritional status. Safety note: Do not start restrictive diets or high-dose supplements based solely on a leaky gut test without professional guidance.