What role does Stuhlprobe play in sleep?

The role of a stool sample (microbiome analysis) in sleep is not yet fully established. Observational studies suggest that gut microbiota can influence sleep via neurotransmitter production (e.g., serotonin, GABA) and inflammatory modulation. However, effects are small, highly individual, and not directly causal. Commercial microbiome tests may reveal general imbalances but cannot diagnose sleep disorders or guide personalized treatment. Evidence is mostly mechanistic, from animal models or small human studies. For reliable sleep assessment, sleep diaries, actigraphy, or polysomnography remain the gold standard. Our test does not include microbiome analysis; we focus on genetic variants (COMT, BDNF, melatonin receptor) linked to sleep quality, which also have small effect sizes. Safety note: Persistent sleep issues warrant medical evaluation before relying on test results.