SynthesisFrontiers in endocrinology2026
Effects of inositol in women with polycystic ovary syndrome: an umbrella review of meta-analyses from randomized controlled trials.
Synthesis in Frontiers in endocrinology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors.
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Abstract
Objectives: This umbrella review aimed to synthesize and appraise the evidence regarding the efficacy of inositol for Polycystic Ovary Syndrome (PCOS) by integrating meta-analyses of randomized controlled trials(RCTs), thereby assessing the robustness of the existing body of evidence. Methods: We searched four databases from inception to August 2025 for relevant RCT meta-analyses. Primary outcomes included hormonal profiles, glycolipid metabolism, anthropometrics, and reproductive outcomes. Quality was assessed using AMSTAR-2 and GRADE. Results: Thirteen meta-analyses were included. AMSTAR-2 ratings were 23.1% high, 53.8% low, and 23.1% very low quality. GRADE assessment of 85 evidence items revealed no high-quality evidence; 18.9% were moderate, 40% low, and 41.1% very low quality. Pooled analyses demonstrated that inositol significantly improved multiple outcomes compared to placebo/FA: it reduced serum luteinizing hormone (LH: MD -3.43 IU/L, 95% CI [-4.29, -2.56], Conclusion: Inositol improves core PCOS manifestations. Supported by moderate-quality evidence for effects on TT, FT, SHBG, HOMA-IR, and pregnancy/ovulation rates, it is a promising therapy. Differential efficacy of inositol subtypes may inform personalized treatment. However, outcomes based on low-quality evidence require cautious interpretation and should not solely guide clinical decisions, highlighting the need for larger, rigorous trials. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/, identifier CRD420251146691.
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