Propionibacterium freudenreichii JS
Propionibacterium freudenreichii JS is a dairy-associated bacterium — best known as the species responsible for the characteristic flavor and eyes of Swiss-type cheeses — that has also been studied as a potential probiotic candidate in the Propionibacterium genus. Human clinical research with this specific strain designation has included randomized trials examining upper respiratory and gastrointestinal infections in children and older adults, often in combination with other probiotic strains including Lactobacillus rhamnosus GG. Isolating the specific contribution of P. freudenreichii JS from these multi-strain study designs is difficult, and strain-specific efficacy evidence remains limited. 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 4 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 3 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 →
7 papers reference this strain in the probiotic database.
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Citations
Selected papers that name this strain.
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[1]
PMID 26689224 →Absence of adverse events in healthy individuals using probiotics – analysis of six randomised studies by one study group· Beneficial Microbes · 2015
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[2]
PMID 17353072 →Treatment of acute otitis media with probiotics in otitis-prone children—A double-blind, placebo-controlled randomised study· Clinical Nutrition · 2007
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[3]
Source →Probiotics in the prevention of clinical manifestations of common infectious diseases in children and in the elderly· Työväentutkimus Vuosikirja · 2007