Does Ginkgo help cognition? (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.
Ginkgo shows a Grade C benefit for cognition: the recorded evidence suggests a modest effect, low certainty. Dose range not specified.
Exact question reviewed
- Population
- not reported
- Intervention
- Ginkgo
- Comparator
- not reported
- Outcome
- cognition
- Time horizon
- not reported
Bottom line. Ginkgo shows a Grade C benefit for cognition: the recorded evidence suggests a modest effect, low certainty. Dose range not specified. [1 other]
- Direction
- benefit
- Magnitude
- no reliable benefit for preventing cognitive decline in large trials
- Grade
- C
- Certainty
- low
- Clinical meaning
- small but potentially useful
- Who it applies to
- —
- Dose / form studied
- not reported
- Safety
- serious_with_warfarin; moderate_with_ssri
- The one limitation
- Claim-specific limitation details are not available in this public record.
Reviewed not reported · Evidence last changed · Open evidence record (version 0)
⚠ Safety in context
- seriouswith Warfarin: Ginkgo has antiplatelet activity; with warfarin it may increase bleeding risk. full interaction →
- moderatewith SSRI: Possible additive bleeding/serotonergic effects with SSRIs. full interaction →
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
The studied population is not reported in this public record.
Evidence
| Study | Design | Role | Cite |
|---|---|---|---|
| Ginkgo biloba for prevention of dementia: a systematic review and meta-analysis | peer-reviewed | not classified | PMID:26058281 |
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_ginkgo_cog
- 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
People say · Evidence shows
“Ginkgo prevents dementia and boosts memory”
Evidence: Grade C — no reliable benefit for preventing cognitive decline in large trials.
How it stacks up for cognition
- Ginkgo vs Creatine for cognition — Creatine Grade B
- Ginkgo vs Caffeine for cognition — Caffeine Grade A
- Ginkgo vs Lion's Mane for cognition — Lion's Mane Grade C
- Ginkgo vs L-Theanine for cognition — L-Theanine Grade C
- Ginkgo vs Iron for cognition — Iron Grade C
- Ginkgo vs Ashwagandha for cognition — Ashwagandha Grade C
- All interventions graded for cognition →
Grade history
- C → CCorrection by Claude (gold-standard provenance sweep): live Postgres source drift replaced with the verified seed source set [pmid-26058281] details →
- B → CA large dementia-prevention trial reported a null result. details →
Re-review cadence: every 6 months (Grade C+) · methodology v1.
Frequently asked
How long does Ginkgo take to work for cognition?
This record does not report a studied onset time for Ginkgo and cognition. Do not assume a typical timeframe.
What dose was used in studies of Ginkgo for cognition?
No studied dose is recorded for Ginkgo and cognition in this public record. See the dose block for what, if anything, is reported.
Does Ginkgo work for cognition if I'm not deficient?
The studied population is not reported for Ginkgo and cognition, so whether baseline status changes the effect is not known from this record.
Ginkgo or the next-best alternative for cognition?
See the compare block above for the head-to-head with the most-cited alternative. Grade + certainty differences matter more than any single trial.
Related
What this is — and is not
- Evidence description
- no reliable benefit for preventing cognitive decline in large trials
- 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 Ginkgo help cognition? (Grade C). https://evidencebased.info/interventions/ginkgo/cognition. Updated 2026-07-16.
BibTeX
@misc{substrate_tionsginkgocognition,
author = {Substrate editorial},
title = {Does Ginkgo help cognition?},
year = {2026},
url = {https://evidencebased.info/interventions/ginkgo/cognition},
note = {Grade C, evidencebased.info}
}Found something wrong on this page? Report an error →
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.