Does Black Cohosh help menopausal symptoms? (Grade C evidence)

Explore current source-reported research for this exact question. These records are separate from the synthesis below; they do not update its grade or establish a recommendation.

Black Cohosh may modestly help menopausal symptoms in specific populations (Grade C, low certainty), especially in peri/post-menopausal women. Dose range: 40 mg/day.

Exact question reviewed

Population: peri/post-menopausal women
Intervention: Black Cohosh · 40 mg/day
Comparator: not reported
Outcome: menopausal symptoms
Time horizon: not reported

Bottom line. Black Cohosh may modestly help menopausal symptoms in specific populations (Grade C, low certainty), especially in peri/post-menopausal women. Dose range: 40 mg/day. [1 other]

Direction: benefit
Magnitude: inconsistent evidence for hot-flash relief; some trials positive, larger ones null
Grade: C
Certainty: low
Clinical meaning: small but potentially useful
Who it applies to: peri/post-menopausal women
Dose / form studied: 40 mg/day
Safety: not assessed
The one limitation: Claim-specific limitation details are not available in this public record.

Reviewed not reported · Evidence last changed 2026-07-16 · Open evidence record (version 0)

Grade

what does the grade mean?

Certainty

low

what does certainty mean?

Grade C / low: hints of benefit in small trials; a well-run RCT could easily push this to B or to null.

Who it works for

Best-studied in peri/post-menopausal women. Recorded studied dose: 40 mg/day.

Evidence

Study	Design	Role	Cite
Review & meta-analysis: isopropanolic black cohosh extract iCR for menopausal symptoms	peer-reviewed	not classified	PMID:33021111

Why this grade

Reasoning trace

The current record stores Grade C at low certainty and links 1 publishable source. A claim-specific domain-by-domain grading rationale is not available in this public record, so no reason for upgrading or downgrading is inferred here.

Audit and version

Claim ID: ec_bc_meno
Claim version: not reported
Governance: legacy, not verified
Clinician review: Not yet reviewed by a licensed clinician
Last evidence search: not reported
Last editorial review: not verified

Public receipt · Machine-readable claim · Methodology

Dose & form

Studied intake: 40 mg/day.

People say · Evidence shows

“black cohosh reliably stops hot flashes”

Evidence: Grade C — inconsistent evidence for hot-flash relief; some trials positive, larger ones null.

How it stacks up for menopausal symptoms

Black Cohosh vs Soy Isoflavones for menopausal symptoms — Soy Isoflavones Grade B
All interventions graded for menopausal symptoms →

Grade history

2026-07-16C → CCorrection by Claude (gold-standard provenance sweep): live Postgres source drift replaced with the verified seed source set [pmid-33021111] details →

Re-review cadence: every 6 months (Grade C+) · methodology v1.

Frequently asked

How long does Black Cohosh take to work for menopausal symptoms?

This record does not report a studied onset time for Black Cohosh and menopausal symptoms. Do not assume a typical timeframe.

What dose was used in studies of Black Cohosh for menopausal symptoms?

The recorded studied dose for Black Cohosh and menopausal symptoms is 40 mg/day. This is a source detail, not a dose recommendation.

Does Black Cohosh work for menopausal symptoms if I'm not deficient?

The recorded studied population is peri/post-menopausal women. This field alone does not show whether deficiency or baseline status changes the effect.

Black Cohosh or the next-best alternative for menopausal symptoms?

See the compare block above for the head-to-head with the most-cited alternative. Grade + certainty differences matter more than any single trial.

What this is — and is not

Evidence description: inconsistent evidence for hot-flash relief; some trials positive, larger ones null
Substrate's interpretation: The current reviewed record assigns Grade C at low certainty. A domain-by-domain rationale is shown only when recorded.
Discuss with a clinician: If you're on medication or have a condition that changes the calculus, bring the interaction & population blocks above to your pharmacist or prescriber before deciding.
Individualized medical advice: Not provided here or on any Substrate surface (API, agent tool, embed) — see YMYL policy.

Cite this page

Citation is encouraged. The proposed reuse license is CC-BY-4.0; status: pending-governance-ratification.

Plain-text citation

Substrate. Does Black Cohosh help menopausal symptoms? (Grade C). https://evidencebased.info/interventions/blackcohosh/menopause. Updated 2026-07-16.

BibTeX

@misc{substrate_blackcohoshmenopause,
  author = {Substrate editorial},
  title  = {Does Black Cohosh help menopausal symptoms?},
  year   = {2026},
  url    = {https://evidencebased.info/interventions/blackcohosh/menopause},
  note   = {Grade C, evidencebased.info}
}

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Current source-reported research

Membership uses admitted intervention and measured-outcome associations for this exact question. Different populations, preparations, comparators and timepoints remain separate. No pooling or update to the synthesis is asserted.