Evidence check: Longevity DNA Test in the context of Darmgesundheit

A longevity DNA test in the context of gut health currently lacks robust scientific evidence. The markers tested by MyBody-X (e.g., CYP2C19, FUT2, TNF) have only indirect and very small effects on inflammatory pathways or the gut microbiome, and are not validated for predicting gut health or longevity. Microbiome tests are also not FDA-approved and show poor reproducibility. The evidence for direct links between these SNPs and gut health is weak, mostly based on association studies. A Mediterranean diet, however, is well-supported to improve both gut microbiota and longevity (PMC13164940). Bottom line: the test offers no clinically actionable insights for gut health and should not replace medical advice or dietary guidance.