Propionibacterium freudenreichii ET-3
Propionibacterium freudenreichii ET-3 is a dairy-associated bacterium (common in Swiss-type cheeses) that has been studied for its potential as a gut microbiota modulator. Human observational and RCT work has examined fecal bifidobacteria levels and stool frequency in healthy adults following regular consumption. Animal studies have explored its activity in colitis models, examining metabolites that interact with immune regulatory pathways. In vitro work has characterized a compound called DHNA (1,4-dihydroxy-2-naphthoic acid) as a candidate bifidogenic factor. Evidence in humans is limited to microbiota and bowel regularity outcomes; no human efficacy data exist for clinical conditions. These are research topics, not findings; the papers do not establish that this strain treats or prevents any condition.
Where it's been studied Tags come from a conservative keyword scan of each paper's title, abstract, and summary. A tag is research coverage, not measured effect. How we classify this →
Share of this strain's 6 body-system-tagged papers that concern each system. Research coverage, not measured effect.
Symptoms in the research A tag means the paper's text names the symptom or condition — research coverage, not evidence of benefit. How we classify this →
Share of this strain's 4 symptom-tagged papers that mention each symptom or condition. Research coverage, not evidence of benefit.
Research Study-type filters use AI-classified labels, audited but not guaranteed — check the paper itself before leaning on one. How we classify this →
11 papers reference this strain in the probiotic database.
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Citations
Selected papers that name this strain.
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[1]
Source →Les propriétés anti-inflammatoires de la bactérie probiotique Propionibacterium freudenreichii révélée de l’in vitro à l’in vivo grâce au fromage· HAL (Le Centre pour la Communication Scientifique Directe) · 2018
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[2]
Source →Effect of Ingested Culture of Propionibacterium freudenreichii ET-3 on Fecal Microflora and Stool Frequency in Healthy Females· Bioscience and Microflora · 2002
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[3]
PMID 12005071 →Isolation and Identification of a New Bifidogenic Growth Stimulator Produced by Propionibacterium freudenreichii ET-3· Bioscience Biotechnology and Biochemistry · 2002