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Gastrointestinal disease

Compared within 2 studies that had both: 117 people with gastrointestinal disease and 94 healthy people. 1 genus is less common in people with gastrointestinal disease, and none more common.

A difference is an association: it doesn’t mean these genera cause, prevent or treat gastrointestinal disease. GMrepo reports this group at the genus level only, so these are genera, not species.

Searching opens both lists and shows only matching rows.

Less common in gastrointestinal disease · 1

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Ruminococcus genus in 2 studies Healthy 87% gastrointestinal disease 70%

More common in gastrointestinal disease · 0

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people

None compared.

Where these numbers come from

Studies
Only GMrepo projects that had people with the condition and healthy people, 10 or more of each. Numbers come from those studies, never from pooling.Sampled in South Korea, the United States.
How common
The share of people whose sample has any of it, in the people with the condition and in the healthy people of those same studies. Tested within studies (Cochran–Mantel–Haenszel, corrected for testing many microbes); a difference counts when it is clear and meaningful (Cohen’s h of 0.2 or more).
Strength word
Counted by code from how many studies point the same way: Seen again and again (3 or more, none clearly the other way), Seen more than once (2, the majority), Seen once (1, listed last). Where studies disagree, a row isn’t listed.
Each study
Tap a row for every study’s own numbers, and for how much carriers have.
Analysis
Our analysis of GMrepo data. GMrepo on Data sources · Read the rules

Also compared · 133 genera

Compared within studies that had both, but not listed above.

No meaningful difference · 133
PubMed · human studies and reviews first

Recent research

All research on it
  1. Review Current microbiology · 2026
    Gut Bacteria: A Beneficial Symbiosis or a Hidden Threat? Investigating the Dual Role of Bacteria in Gastrointestinal Diseases.
    PubMed ↗
  2. Observational Phytomedicine · 2026
    Zuojin Pill ameliorates depression with gastrointestinal dysfunction via Parabacteroides distasonis.
    PubMed ↗
  3. Observational PeerJ · 2025
    The clinical significance of gut microbiota of chronic obstructive pulmonary disease with functional abdominal bloating and distension.
    PubMed ↗
  4. Review Current opinion in clinical nutrition and metabolic care · 2025
    An update on probiotics in paediatrics.
    PubMed ↗
  5. Review Journal of the science of food and agriculture · 2025
    Probiotics: mechanism of action and gastrointestinal health: gut guardians: unlocking the power of probiotics.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 85 linked papers, last 10 years