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Reproductive Tract Infections Research / Ovarian Function and Disorders · Journal article
Frontiers in Endocrinology · September 10, 2026
A consensus or society position rather than new primary data.
This is a narrative review of mechanisms linking gut microbial metabolites to PCOS pathogenesis and summarizing intervention strategies including probiotics, prebiotics, postbiotics, and fecal microbiota transplantation. The source synthesizes evidence from basic research, observational studies, and trials but does not present new empirical data or a systematic quantitative synthesis.
Narrative review. Literature on PCOS and gut microbiota; original studies included basic research, clinical observational studies, randomized controlled trials, systematic reviews, meta-analyses, and clinical guidelines.. Intervention: Gut microbial metabolites and microbiota-targeted interventions including probiotics, prebiotics, postbiotics, and fecal microbiota transplantation.
Gut microbiota and their metabolites participate in PCOS pathogenesis via metabolic, immune, and neuroendocrine pathways PCOS is frequently complicated by insulin resistance, obesity, dyslipidemia, and chronic low-grade inflammation Reviewed mechanistic pathways include short-chain fatty acids, bile acids, lipopolysaccharide, branched-chain amino acids, and tryptophan metabolism
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
This review provides a framework for understanding how gut microbiota dysfunction may contribute to PCOS pathophysiology and identifies potential microbiota-targeted interventions; however, as a narrative synthesis, it does not establish the efficacy of any single intervention and should be interpreted as a state-of-the-art summary rather than definitive clinical guidance.
This is a narrative review synthesizing mechanistic evidence and intervention strategies for gut microbiota in PCOS, providing expert summary rather than original data or a practice-changing trial.
As stated by the source record.
This review provides a framework for understanding how gut microbiota dysfunction may contribute to PCOS pathophysiology and identifies potential microbiota-targeted interventions; however, as a narrative synthesis, it does not establish the efficacy of any single intervention and should be interpreted as a state-of-the-art summary rather than definitive clinical guidance.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
What is missing. This record has no reported figures. That is a gap in the analysis, not a judgement about the study.
Background Polycystic ovary syndrome (PCOS) is a prevalent endocrine-metabolic disorder among women of reproductive age, defined by the core features of hyperandrogenism, ovulatory dysfunction, and polycystic ovarian morphology. PCOS is frequently complicated by insulin resistance, obesity, dyslipidemia, and chronic low-grade inflammation, which substantially impair patients’ reproductive health, metabolic homeostasis, and quality of life. Although the etiology of PCOS remains incompletely elucidated, accumulating evidence indicates that gut microbiota and their metabolites participate in the pathogenesis and progression of PCOS via metabolic, immune, and neuroendocrine pathways. Focusing on the gut-ovary axis, this review systematically summarizes the molecular mechanisms by which gut microbial metabolites mediate PCOS-related pathological processes, as well as potential intervention strategies. Methods This article is a narrative review. To ensure comprehensive literature coverage, we searched the PubMed, Embase, Web of Science, and Cochrane Library databases from their inception to June 30, 2026. Search terms included polycystic ovary syndrome, PCOS, gut microbiota, gastrointestinal microbiota, microbial metabolites, short-chain fatty acids, bile acids, lipopolysaccharide, branched-chain amino acids, tryptophan metabolism, gut-ovary axis, probiotics, prebiotics, postbiotics, and fecal microbiota transplantation. Original basic research, clinical observational studies, randomized controlled trials, systematic reviews, meta-analyses, and clinical guidelines related to PCOS and gut microbiota were prioritized for inclusion. Content lacking clear support from primary literature, with evidence limited to other disease models, or involving excessive mechanistic extrapolation was either excluded or interpreted conservatively.
Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.