Evidence brief · Supplement
Ginkgo Biloba for Dementia prevention
Evidence grade D — GEM trial null
- Overall grade
- Grade D
- Last revised
- 1
- graded outcome
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
1 at grade D — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Dementia preventionEvidence grade D
GEM trial null
Trivialhigh
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Dementia prevention (grade D).
The evidence in words
The verdict
For dementia prevention, Ginkgo Biloba earns evidence grade D (trivial effect, high consistency) — the evidence does not support the claim. GEM trial null
How it might work
It has antioxidant and vasodilatory actions and mild antiplatelet activity, proposed to improve microcirculation and neuronal resilience.
How to use it
120–240 mg/day of a standardized extract if used at all; benefits, if any, are modest.
Safety & cautions
Increases bleeding risk, especially with anticoagulants/antiplatelets and around surgery; stop well before procedures.
Bottom line
Not the memory-saver it's marketed as — the prevention trials were null. Modest niche use at best, and a genuine bleeding concern.
How it is used
As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.
- Standard
- 120–240 mg/day standardized.
Goes with
- Ginkgo BilobaRead the full Ginkgo Biloba monographEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- Ginkgo Biloba for Cognitive impairment (existing)Evidence grade C — InconsistentEvidence grade C
- Bacopa Monnieri for Acute cognitionEvidence grade D — No same-day effectEvidence grade D
- Bacopa Monnieri for Memory (chronic)Evidence grade B — Delayed recall; 8–12 weeksEvidence grade B
- Citicoline (CDP-Choline) for Attention / memoryEvidence grade C — ModestEvidence grade C
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.