Health · Medical Research · 17 hrs ago
Study links lifestyle habits to gut bacteria and chronic disease patterns
Researchers in Japan studied gut bacteria and lifestyle habits in 6,803 adults.
They compared gut microbes with 28 factors, including diet, smoking, exercise and time spent sitting, as well as general health and 15 chronic diseases.
Plant-based foods, fermented foods, coffee and physical activity were mostly linked to health-oriented microbial patterns.
Refined carbohydrates, smoking and prolonged sitting were mostly linked to disease-oriented microbial patterns.
The findings show statistical associations, not proof that these habits change disease risk through gut bacteria.
Researchers also created microbiome-based scores to predict health and disease patterns and tested them in 13 other cohorts.
A study linked lifestyle habits with gut bacteria patterns associated with general health and 15 chronic diseases.
Plant-based diets, fermented foods, coffee and physical activity were mainly linked to health-oriented microbial patterns.
Refined carbohydrates, smoking and prolonged sitting were mainly linked to disease-oriented microbial patterns.
The research analyzed gut microbiome data from 6,803 participants in Japan’s 4D project.
Researchers also developed microbiome-based prediction scores and tested them in 13 external cohorts.
- Who
- Researchers from Japanese institutions, working with the European Molecular Biology Laboratory in Germany.
- What
- The study examined how gut bacteria may statistically link lifestyle factors with health and chronic diseases.
- When
- Published on November 8, 2026.
- Where
- The main study used participants in Japan’s 4D research project; the work involved collaboration with an institute in Germany.
- Why
- Researchers sought to clarify the gut microbiome’s role in relationships between lifestyle, general health and chronic disease.
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- Study participants
- 6,803 adults aged 16–95
- Health outcomes
- General health and 15 chronic diseases
- Lifestyle factors
- 28 factors examined
- External validation
- 13 cohorts comprising 3,095 people
- Longitudinal analysis
- 402 participants, 804 samples, median follow-up of two years