Ginkgo Biloba (Eye Health)
Enhances ocular blood flow, delivering more oxygen and nutrients to the delicate tissues of the eye.
Also known as: Maidenhair Tree
Overview
Ginkgo Biloba is one of the oldest living tree species and a well-known herbal supplement for cognitive function. Its benefits extend to eye health, primarily by improving blood circulation. By enhancing microcirculation, ginkgo helps increase blood flow to the retina and optic nerve, which can be beneficial for conditions like glaucoma and diabetic retinopathy.
Key Benefits
Improves Ocular Microcirculation
Increases blood flow to the optic nerve and other parts of the retina, which can help protect against ischemic damage.
Glaucoma Support
Some studies suggest that ginkgo can improve visual field damage in patients with normal-tension glaucoma.
Antioxidant Effects
The flavonoids in ginkgo provide antioxidant protection against free radical damage in the eye.
Dosage & How to Take
120-240 mg per day of a 50:1 standardized extract, often taken in two divided doses.
| Purpose | Dose | Notes |
|---|---|---|
| Glaucoma Adjunctive Support | 120 mg daily | Dose used in studies showing visual field improvement. |
| General Ocular Blood Flow | 120-240 mg daily | Higher doses may provide more significant circulatory benefits. |
Best Time to Take
Best taken in divided doses, e.g., morning and evening.
With or Without Food
Not required.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Standardized Extract (24/6) | High | Therapeutic use | Ensures a reliable concentration of active compounds. |
Side Effects & Safety
Common
- Mild headache or dizziness when first starting.
Rare
- Digestive upset
- Allergic skin reactions.
Contraindications
- Should not be taken with anticoagulant drugs (e.g., warfarin, aspirin) without medical supervision due to increased bleeding risk. Discontinue use two weeks before surgery.
Interactions
Increased risk of bleeding
May increase risk of serotonin syndrome
Scientific Research
Ginkgo Biloba Extract in Glaucoma
A study published in Ophthalmology found that ginkgo biloba extract improved pre-existing visual field damage in some patients with normal tension glaucoma.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.