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Type 2 diabetes

High blood sugar because the body doesn't respond well to insulin.

Compared within 1 study that had both: 78 people with type 2 diabetes and 104 healthy people. No microbes less common in people with type 2 diabetes, and none more common.

A difference is an association: it doesn’t mean these microbes cause, prevent or treat type 2 diabetes.

Searching opens both lists and shows only matching rows.

Less common in type 2 diabetes · 0

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

None compared.

More common in type 2 diabetes · 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 China.
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 · 318 microbes

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

No meaningful difference · 318
PubMed · human studies and reviews first

Recent research

All research on it
  1. Observational Iranian journal of medical sciences · 2026
    Integrative Metagenomic Analysis Reveals Human Gut Microbiome-Derived Candidate Non-invasive Biomarkers for Type II Diabetes Mellitus.
    PubMed ↗
  2. Randomized trial Journal of diabetes investigation · 2026
    Effects of age, sex, and renal function on bowel movement-improving effects of Bifidobacterium bifidum G9-1 on constipation in patients with type 2 diabetes mellitus and chronic kidney disease: A prespecified subgroup analysis of the BIRDIE study.
    PubMed ↗
  3. Review Progress in neuro-psychopharmacology & biological psychiatry · 2026
    Vitamin B12-mediated microglial immunometabolic reprogramming: A novel mechanistic insight into diabetes-associated cognitive impairment.
    PubMed ↗
  4. Review Frontiers in endocrinology · 2026
    Gut microbiota in type 2 diabetes mellitus: mechanistic links between dysbiosis, insulin resistance, and chronic low-grade inflammation.
    PubMed ↗
  5. Observational Scientific reports · 2026
    The gut microbiota and metabolomics in the pathogenesis of type 2 diabetes mellitus combined with coronary atherosclerotic heart disease.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 286 linked papers, last 10 years