Home / Conditions / Alzheimer’s disease Condition
Alzheimer’s disease 46 associated organisms · Early research links a pro-inflammatory gut community to amyloid pathology, but this is a young, preliminary field.
Symptoms of Alzheimer’s disease can need medical evaluation. Treat these associations as background
context only — please see a doctor rather than self-treating.
Organisms associated with Alzheimer’s disease
Community metric
Reduced diversity is reported, but Alzheimer’s microbiome research is young and largely associative.
Species
Pro-inflammatory Escherichia/Shigella are enriched in some cohorts and correlate with brain inflammation markers.
Species
Reported in Disbiome.
Taxon
Reported in Disbiome.
Shigella ○ Associated with Alzheimer’s disease Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Genus
Reported in Disbiome.
Dialister ○ Associated with Alzheimer’s disease Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Genus
Reported in Disbiome.
Genus
Reported in Disbiome.
Genus
Reported in Disbiome.
Taxon
Reported in Disbiome.
Bilophila ○ Associated with Alzheimer’s disease Taxon
Reported in Disbiome.
Gemella ○ Associated with Alzheimer’s disease Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Family
Reported in Disbiome.
Taxon
Reported in Disbiome.
Genus
Reported in Disbiome.
Genus
Reported in Disbiome.
Dorea ○ Associated with Alzheimer’s disease Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Halomonas ○ Associated with Alzheimer’s disease Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
Taxon
Reported in Disbiome.
‹ All conditions Conditions Organisms Influences Gut–brain axis The gut census Methodology Research associations, not a diagnosis. Most links between gut organisms and conditions are correlational, and studies often disagree. BiotaMD shows that uncertainty with an evidence tier on every claim, and flags popular ideas the evidence doesn’t support. Composition-by-weight figures are cell-size-corrected estimates. For symptoms, see a clinician — nothing here is medical advice.
© 2026 BiotaMD. Curated with source-transparency as the design principle.