The clearest signal on this page is around dementia symptom support (clinical context) and walking distance in intermittent claudication, but the evidence for other effects on this page is still mixed. Other uses here are narrower, weaker, or not clear enough yet.
What the research says
Each row is a different health effect. A means the support looks strongest, B likely helpful, C mixed or modest, and — not enough human evidence yet.
Papers are individual studies. Research reviews summarize evidence from multiple studies, such as systematic reviews and meta-analyses.
C · Mixed or limited evidence
C
Dementia symptom support (clinical context)
The research on dementia symptom support (clinical context) is mixed, modest, or both. Any claim here should stay narrow and specific.
6 papers · 3 research reviews
C
Walking distance in intermittent claudication
The research on walking distance in intermittent claudication is mixed, modest, or both. Any claim here should stay narrow and specific.
6 papers · 2 research reviews
— · Not enough human evidence yet
—
Mild cognitive impairment / age-related decline
Research has been reviewed for mild cognitive impairment / age-related decline, but the current human evidence is still too limited or inconsistent for a confident benefit claim.
4 papers
—
Memory & attention in healthy adults
Research has been reviewed for memory & attention in healthy adults, but the current human evidence is still too limited or inconsistent for a confident benefit claim.
2 papers
—
Tinnitus
Research has been reviewed for tinnitus, but the current human evidence is still too limited or inconsistent for a confident benefit claim.
3 papers · 1 research review
—
Anxiety symptoms
Research has been reviewed for anxiety symptoms, but the current human evidence is still too limited or inconsistent for a confident benefit claim.
3 papers
—
Vertigo & dizziness
Research has been reviewed for vertigo & dizziness, but the current human evidence is still too limited or inconsistent for a confident benefit claim.
3 papers
Safety
Safety is graded separately from benefits. Even with a favorable safety label, these notes still matter if you take medication, are pregnant, or have a medical condition.
✓ SafeNo clear harm signal in the human evidence reviewed.
✓
Medication and condition cautions
This is a safety note, not a benefit claim. It should not be read as a green light for every person or situation.
1 direct human study
✓
Side effects and tolerability
This is a safety note, not a benefit claim. It should not be read as a green light for every person or situation.
1 direct human study
Quick facts
A quick read on what this page supports right now.
Health effects reviewed
7 health effects reviewed
Best grade shown
C · Mixed or limited evidence
Benefits with support
2 uses currently show some level of supportive evidence
Safety rows
2 separate safety or caution rows
Research volume
27 unique research papers across graded uses on this page
What this means
Keep any benefit claims limited to the specific graded uses shown here.
Quality-verified products
Products that pass third-party quality testing.
Product quality data coming soon
Any future product listings should stay aligned with the specific graded outcomes and the separate safety rows shown here.
How we graded Ginkgo biloba
This page shows the current public rows for Ginkgo biloba:
27 unique research papers across
7 visible health effects. Safety rows are shown separately from benefit rows when available. The page includes
6 review-level papers and
21 direct human study. Each supplement is graded by health effect using a certainty × effect matrix applied across PubMed evidence per health effect. Cochrane reviews and high-quality systematic reviews carry the most weight. See
Methodology
for full detail.