Is Stuhlprobe useful for longevity?

Whether a stool test is useful for longevity cannot be confirmed based on the provided context. The available studies and Q&A batches cover sleep duration, cognitive decline, inflammatory markers (IL-6, CRP), and genetic variants (FTO, ACTN3, SOD2) – none address stool analysis or the gut microbiome directly. While the gut microbiome is plausibly linked to aging through inflammation, metabolism, and immune function, direct evidence that stool testing improves lifespan is lacking. Consumer microbiome tests often report relative abundances and dysbiosis scores, but these are not validated as longevity biomarkers. Without longitudinal human studies or interventional trials, the utility remains speculative. For longevity, evidence-based strategies (diet, exercise, sleep, stress reduction) are far more robust. Stool tests may offer exploratory insights but should not be overinterpreted. Evidence level: unclear.