Is Leaky Gut Test useful for Langlebigkeit?

The usefulness of a 'leaky gut test' for longevity is questionable from an evidence-based perspective. Leaky gut (increased intestinal permeability) is a concept often promoted in alternative medicine, but no validated, clinically accepted test reliably diagnoses it or directly links to longevity outcomes. Common tests (e.g., zonulin, lactulose/mannitol) lack strong evidence for predicting aging or chronic disease risk. While gut health is important for overall well-being, mainstream medicine does not recommend routine leaky gut testing because it often leads to unnecessary dietary restrictions and supplement use. For longevity, established biomarkers like inflammation (hs-CRP), lipid profile, glucose metabolism, and comprehensive stool microbiome analysis are more meaningful. MyBody-X does not offer leaky gut tests. Conclusion: The evidence is weak and largely marketing-driven. Consumers should be cautious and focus on validated health metrics instead.