Gut microbiota and health · Observational data analysis

Which gut bacteria go along with better health?

Paper: Gut micro-organisms associated with health, nutrition and dietary interventions
Asnicar et al. · Nature 2025 · doi.org/10.1038/s41586-025-09854-7

Watch in the feed

What the trailer says

Which gut bacteria go along with better health? Researchers analysed gut bacteria and health data from 34,000+ people in the United States and Britain. They ranked 661 species by their links to markers like blood sugar. Healthy-weight people carried, on average, 5.2 more top-ranked species than people with obesity. In two diet trials, favourably ranked species increased while unfavourable ones declined. These are links, not proof that the bacteria cause better health.

AI-assisted summary with an AI voice, not reviewed by the authors. Made from the paper under its CC BY licence. Read the paper before relying on a finding. Keywords: What does your gut bacteria do?, gut microbiome, gut microbiota, diet, cardiometabolic disease, body mass index.