Evidence supporting the use of: Black walnut
For the health condition: Parasites (tapeworm)

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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 parts of Europe, as a remedy for intestinal parasites, including tapeworms. Herbalists and folk practitioners have recommended black walnut hulls for centuries, often in combination with other herbs such as wormwood and cloves, as part of protocols to "cleanse" the digestive system of worms and other parasites. The primary active component believed to contribute to this effect is juglone, a naphthoquinone compound with purported antimicrobial and antiparasitic properties. However, while there are laboratory studies showing juglone and black walnut extracts can inhibit or kill some microorganisms and parasites in vitro, there is a lack of high-quality clinical trials in humans to confirm efficacy against tapeworms specifically. Most supporting evidence is anecdotal or derived from historical usage rather than modern scientific validation. Safety concerns also exist, as black walnut hulls can be toxic in large amounts or with prolonged use. In summary, the use of black walnut for tapeworms is primarily justified by traditional usage and limited preclinical evidence, but robust scientific validation in the form of controlled human studies is lacking, resulting in a low to moderate evidence rating.

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