Ginkgo Biloba: Cognitive Evidence & Safety
What authoritative evidence says about ginkgo biloba, cognitive claims, dementia research and supplement safety.
What is ginkgo?
Ginkgo biloba leaf extracts are widely marketed in supplements for cognitive and other health purposes.
What does the evidence say?
NCCIH says there is no conclusive evidence that ginkgo is helpful for any health condition. It has not been shown to prevent or slow dementia, and whether it influences cognitive performance in healthy people remains uncertain.
Safety
NCCIH reports that ginkgo may cause side effects and can interact with medicines. Check authoritative safety information and discuss use with a health professional when relevant.
Why this matters for formulas
A study of a specific standardized ginkgo extract does not automatically validate a different dose, extract or multi-ingredient product.