Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Juglans cinerea (butternut) has a history of traditional use among Indigenous peoples and early North American settlers for various medicinal purposes, including as a topical application for external bleeding. Historical herbal texts and ethnobotanical sources, such as those compiled by early American herbalists and ethnobotanists (e.g., King's American Dispensatory, 1898), mention the bark and leaves of Juglans cinerea being used as an astringent to help stop bleeding when applied to wounds. The astringency is attributed to the presence of tannins, which can constrict tissue and blood vessels, potentially aiding in the cessation of minor external bleeding.

However, there is little to no modern scientific research or clinical trials validating the efficacy or safety of Juglans cinerea for this purpose. The evidence is primarily anecdotal and rooted in tradition, with some support from phytochemical analyses showing the presence of astringent compounds. The rating of 2 reflects that while traditional use is documented and plausible mechanisms (tannins acting as astringents) exist, there is insufficient scientific validation or robust clinical evidence to firmly support its use for treating external bleeding.

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