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Bilberry Extract

herbs

Bilberry extract is derived from the European blueberry and is rich in anthocyanins, powerful antioxidants that support eye health and vision. Traditionally used in herbal medicine, it may help reduce eye strain, improve night vision, and support overall ocular function. The extract has been studied for its potential cardiovascular and anti-inflammatory benefits.

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Benefits

Supports eye health and vision clarity
Reduces eye fatigue and strain
Enhances night vision
Provides antioxidant protection
Supports microcirculation
Anti-inflammatory properties

Dosage

Typical Dose

80-160 mg standardised extract (25% anthocyanins) daily

Upper Limit

480 mg daily in divided doses

Timing

With meals for optimal absorption

Forms & Bioavailability

Standardised extract capsules

High when standardised to 25% anthocyanins; enhanced with food

Powder

Moderate; variable depending on standardisation level

Liquid extract

Good; rapid absorption

Side Effects

Mild gastrointestinal upset
Constipation or loose stools
Allergic reactions in sensitive individuals
Rare headaches

Interactions

May potentiate anticoagulant medications (warfarin, aspirin)
Possible interaction with blood pressure medications
May increase bleeding risk with NSAIDs

Research Summary

Clinical studies demonstrate that bilberry anthocyanins improve visual acuity and reduce eye strain in users, particularly those with prolonged screen exposure. Research supports its traditional use for enhancing night vision adaptation and protecting against age-related macular degeneration. Evidence suggests beneficial effects on endothelial function and microvascular blood flow, though large-scale human trials remain limited.

The Bottom Line on Bilberry Extract

Bilberry Extract is well-researched with strong evidence supporting its primary benefits.It is most commonly used for supports eye health and vision clarity and reduces eye fatigue and strain. 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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Disclaimer: This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement, especially if you have existing health conditions or take medication.

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