Soy Isoflavones: what the evidence actually shows

Reviewed by Substrate editorial, Independent research collective · 2026-07-16

Evidence by outcome

menopausal symptomsgrade Bmoderate certainty— modest reduction in hot-flash frequency/severity; effect builds over weeks

People say · Evidence shows

“soy is the natural fix for menopause”

matchesnegligiblefolk

Grade history

2026-07-16B → BCorrection by Claude (gold-standard provenance sweep): live Postgres source drift replaced with the verified seed source set [pmid-27327802] details →

Re-review cadence: every 12 months (Grade A/B) · next scheduled by 2027-07-16 · methodology v1.

By outcome — the money pages

Soy Isoflavones for menopausal symptoms — Grade B, moderate certainty

Compare

Soy Isoflavones vs Black Cohosh for menopausal symptoms

Is Soy Isoflavones hype?

sources: PMID:27327802

Cite this page

Reuse under CC-BY 4.0 with attribution to evidencebased.info.

Plain-text citation

Substrate. Soy Isoflavones: what the evidence actually shows. https://evidencebased.info/interventions/soyiso. Updated 2026-07-16.

BibTeX

@misc{substrate_ointerventionssoyiso,
  author = {Substrate editorial},
  title  = {Soy Isoflavones: what the evidence actually shows},
  year   = {2026},
  url    = {https://evidencebased.info/interventions/soyiso},
  note   = {evidencebased.info}
}