Ginkgo Biloba Extract
herbs
Ginkgo biloba is a traditional herbal supplement derived from the leaves of the ancient ginkgo tree, used for centuries in traditional medicine. It is commonly taken to support cognitive function, memory, and cerebral blood flow, with some evidence suggesting benefits for age-related cognitive decline.
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Benefits
Dosage
Typical Dose
120–240 mg daily in divided doses
Upper Limit
240 mg daily
Timing
With meals to enhance absorption
Forms & Bioavailability
Standardised Extract (24% flavone glycosides, 6% terpene lactones)
High bioavailability with standardised extracts; most research-backed form
Dried Leaf Powder
Lower bioavailability; less consistent potency than standardised extracts
Liquid Extract/Tincture
Moderate to high bioavailability; rapid absorption
Side Effects
Interactions
Research Summary
Ginkgo biloba has been extensively studied for cognitive benefits, with mixed but generally modest evidence supporting its use for memory and concentration in healthy individuals and those with age-related cognitive decline. Most robust evidence supports its use in specific conditions like intermittent claudication and tinnitus, whilst evidence for dementia prevention remains inconclusive. Quality and efficacy vary significantly between products, with standardised extracts showing more consistent results in clinical trials.
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The Bottom Line on Ginkgo Biloba Extract
Ginkgo Biloba Extract is moderately researched with promising but sometimes mixed evidence.It is most commonly used for enhanced memory and cognitive function and improved blood circulation to the brain. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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Goal Guides for Ginkgo Biloba Extract
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