Botanicals · 9 September 2026

Ginkgo Biloba and Circulatory Wellness: An Evidence-Based Review

Editorial Team, Stolvon · 9 September 2026 · 6 min read

Ginkgo leaves beside a labelled botanical reference book and reading glasses on a dark wooden desk

Botanical Evaluation

History is not the whole story

Ginkgo biloba is one of the oldest living tree species on earth, with a rich history in traditional botanical preparations. Its distinctive fan-shaped leaf is instantly recognisable, but historical familiarity should never replace critical scientific evaluation.

For UK adults over 40 exploring botanical supplements, separating marketing lore from modern clinical data is essential for safety and clarity.

1. Botanical Preparations vs. Whole Plant

A fundamental distinction in herbal literature is the difference between raw plant leaf powders and standardised extracts. Clinical trials investigating microvascular and cognitive parameters typically utilise standardised dry extracts (such as EGb 761), which are precisely calibrated for active flavonoid glycosides (approx. 24%) and terpene lactones (approx. 6%), while removing undesirable ginkgolic acids.

Over-the-counter food supplements vary widely in purity, extraction method, and standardised active fractions. A product containing simple ground leaf powder cannot be assumed to possess the same properties as tested clinical extracts.

2. Clinical Research Context

Preparation Level	What Is Described	Scientific Consideration
Raw Leaf / Powder	Crude milled plant material	Variable chemical profile and potential ginkgolic acid content
Standardised Extract	Calibrated flavonoid/terpene ratio	Format studied in controlled clinical trials
Dietary Supplement	Commercial capsules or tinctures	Requires careful verification of manufacturer certificates and labels

3. Important Safety & Interaction Considerations

Because bioactive compounds in Ginkgo biloba can influence platelet aggregation and microvascular haemodynamics, botanical safety is paramount:

Anticoagulant & Antiplatelet Interactions: Ginkgo may increase bleeding risk when taken alongside prescription medicines such as warfarin, aspirin, clopidogrel, or direct oral anticoagulants (DOACs).
Perioperative Caution: Patients scheduled for elective surgical or dental procedures in the UK are routinely advised to discontinue ginkgo preparations well in advance.
Individual Assessment: Botanical supplements should never be initiated without reviewing full medical history and current prescription medications with a GP or clinical pharmacist.

Key Takeaways

Standardised extracts differ significantly from crude leaf preparations.
Historical traditional use does not substitute for modern clinical trial data.
Potential interactions with blood-thinning therapies require strict professional supervision.

Medical Disclaimer

This article is for educational and informational purposes only and does not constitute medical advice or herbal prescribing. Always consult your GP or a qualified healthcare professional before taking Ginkgo biloba or any botanical supplement.