Targeting hormone conversion through dietary fiber improves polyendocrine metabolic ovarian syndrome.

ScienceNov 5, 2026 (epub)

Xinyu Qi, Hong Chen, Qixing Nie et al.

✦ AI-curated · Sources linked

In 30 seconds

This randomized controlled clinical trial examined a combination of inulin, resistant starch, and β-glucan in patients with polyendocrine metabolic ovarian syndrome (PMOS). The intervention reduced plasma androgen concentrations. The authors also describe a proposed gut microbial mechanism: fiber increased Bacteroides xylanisolvens, which converted androstenedione to a nonandrogenic metabolite, coproandrosterone; gut microbiota further metabolized it to dihydro-coproandrosterone. The pathway was validated in a mouse model. The abstract does not report the trial’s sample size or the magnitude of the androgen reduction.

Key findings

  • A dietary fiber combination of inulin, resistant starch, and β-glucan reduced plasma androgen concentrations in patients with PMOS.
  • Fiber increased Bacteroides xylanisolvens, which converted androstenedione into the nonandrogenic metabolite coproandrosterone.
  • Gut microbiota further metabolized coproandrosterone into dihydro-coproandrosterone; the pathway was validated in mice.

Why it matters

The findings connect a dietary intervention with androgen homeostasis and a proposed gut microbial metabolic pathway in PMOS. This offers a potential biological explanation for fiber’s reported benefits and identifies microbial hormone conversion as a possible avenue for further study. The abstract does not establish the size or durability of the clinical effect.

What to keep in mind

The abstract provides no sample size, effect magnitude, or follow-up information, limiting assessment of the clinical effect and its durability.

Source

Published in Science. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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AI-generated summaries may contain errors or omissions. Verify clinically important information with the original publication.

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