Myths vs facts: Mikrobiom Test and Langlebigkeit

Microbiome tests often promise personalized insights into longevity, but the scientific evidence is weak. The Firmicutes/Bacteroidetes ratio is frequently cited, yet studies show only weak, inconsistent associations with obesity and aging – it is not a validated biomarker for longevity. The gut microbiota is highly individual, influenced by diet, medications, and environment, and a single test provides only a snapshot. Longitudinal data are lacking, and many commercial tests rely on correlations rather than causal evidence. Fact: High diversity and a fiber-rich diet are linked to better health, but a test alone cannot predict your lifespan. Be cautious of exaggerated claims; the evidence is mostly marketing-based and not clinically actionable.