Evidence supporting the use of: Black walnut
For the health condition: Infection

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Synopsis

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

Black walnut (Juglans nigra) hulls have a long history of use in traditional herbal medicine, especially in North America and Europe, as a remedy for various types of infections. Native American and early European herbalists often used black walnut preparations topically to treat skin infections, fungal conditions such as ringworm, and as a purported remedy against intestinal parasites. The hulls are rich in juglone, a compound with known antimicrobial properties in laboratory settings.

However, while in vitro (test tube) studies show that juglone and other compounds in black walnut can inhibit the growth of certain bacteria and fungi, there is a lack of robust clinical evidence to support the use of black walnut as a treatment for infections in humans. Most modern scientific research has not extended beyond laboratory studies or animal models, and there are no major clinical trials confirming its efficacy or safety for treating infections.

As a result, the use of black walnut for infections is primarily justified by traditional practices rather than scientific validation. It continues to be included in some herbal formulations and supplements marketed for digestive health or parasite cleansing, but these uses are not endorsed by mainstream medicine due to insufficient high-quality evidence.

More about black walnut
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