Ginkgo biloba
Also known as: Ginkgo, Maidenhair tree, Ginkgo biloba Extract, Ginkgo leaf extract, EGb 761
Overview
Ginkgo biloba leaf extract is a traditional herbal supplement standardized for flavonoid glycosides and terpenoids, with clinical evidence supporting modest benefits for cognitive function and peripheral circulation. The extract has been extensively studied, though effect sizes in healthy populations are modest.
Dosage
4-6 weeks for effects
Elderly, circulation concerns
Mechanism of Action
- โข Improves microcirculation
- โข Antioxidant flavonoids
- โข Inhibits platelet aggregation
Evidence Quality
Improves brain blood flow
Safety & Contraindications
- โข Significant bleeding risk with blood thinners
- โข Stop 2 weeks before surgery
- โข May lower seizure threshold
- โข Avoid with anticoagulants and antiplatelet drugs
- โข Active bleeding or bleeding disorders
- โข Upcoming surgery (stop 14 days prior)
- โข Concurrent use with warfarin or anticoagulants
- โข Seizure disorders (low-quality extracts may contain ginkgotoxin)
- โข Pregnancy and breastfeeding
- โข Headache
- โข GI upset
- โข Dizziness
Avoid
Safe
Interactions
- โข Blood thinners - significant
- โข NSAIDs
- โข SSRIs
- โข Works with vinpocetine
- โข No interactions
Stacking & Synergies
Buying Guide
- โข Standardized extract
- โข Stop 2 weeks before surgery
- โข Allow 4-6 weeks for effects
Frequently Asked About Ginkgo biloba
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Related Guides
In-depth guides covering Ginkgo biloba โ protocols, comparisons, and use cases.
Educational content based on published research and our scoring methodology. Not medical advice โ consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.