Bilberry (Vaccinium myrtillus)
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Overview
Bilberry (Vaccinium myrtillus) has traditionally been used for conditions related to vision, and NCCIH says its anthocyanins and other substances may be of interest for further research. NCCIH says bilberry has not been clearly shown to help any health condition, and the most rigorous studies did not find that it improved night vision in healthy people. It is closely related to the blueberry.
Traditional uses & properties
Eye & Vision Support: Traditionally used for night vision and other eye conditions; NCCIH says the most rigorous studies did not find that bilberry improved night vision in healthy people. Constituents: Bilberries contain anthocyanins, anthocyanosides, tannins, and flavonoids (NCCIH). Blood sugar and circulation (traditional use): The fruit and leaves have traditionally been taken for raised blood sugar and circulatory problems; NCCIH says bilberry has not been clearly shown to help any health condition.
Safety & precautions
Leaves (Long-Term Use): Extended consumption of bilberry leaves in high amounts may cause gastric irritation or kidney issues; NCCIH says bilberry leaves may be unsafe in high doses or over long periods. Blood Thinners: If you take anticoagulant medication or have a bleeding disorder, consult a qualified professional before using bilberry in medicinal doses.
Educational reference only - not medical advice. Herbs can interact with medications. Consult a qualified healthcare provider before use. Full disclaimer.
Drug interactions
Interaction data is not available for this herb - talk to a pharmacist before combining it with any medication. A blank entry here means we have not documented interactions, not that none exist.
Habitat
The plant grows in moist heaths, moors, and forest undergrowth throughout the temperate northern hemisphere - Asia, Europe, and North America. It is cultivated worldwide, usually from seeds or cuttings. The leaves are gathered in summer, while the berries ripen in late summer or early autumn.
Sources
The interaction notes and the statements on this page that name a source were written by HerbMate from these references, which were last checked in October 2026. They are summaries, not medical advice; ask a pharmacist about your own medicines.
Traditionally used for
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Frequently asked questions
What is Bilberry (Vaccinium myrtillus) traditionally used for?
Traditional sources describe Bilberry (Vaccinium myrtillus) as follows: Eye & Vision Support: Traditionally used for night vision and other eye conditions; NCCIH says the most rigorous studies did not find that bilberry improved night vision in healthy people. Constituents: Bilberries contain anthocyanins, anthocyanosides, tannins, and flavonoids (NCCIH). Blood sugar and circulation (traditional use): The fruit and leaves have traditionally been taken for raised blood sugar and circulatory problems; NCCIH says bilberry has not been clearly shown to help any health condition.
What safety cautions apply to Bilberry (Vaccinium myrtillus)?
Leaves (Long-Term Use): Extended consumption of bilberry leaves in high amounts may cause gastric irritation or kidney issues; NCCIH says bilberry leaves may be unsafe in high doses or over long periods. Blood Thinners: If you take anticoagulant medication or have a bleeding disorder, consult a qualified professional before using bilberry in medicinal doses.
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