Condition
Treatment Support
antifungal, anticandidal
Application
tincture, tea, capsules
Black Walnut
(Juglans nigra)
Botanical Information
A tree ranging from medium-sized to very large with dark, deeply furrowed bark. The fruits are 1-2 inches in diameter, bright green, resinous and aromatic. They turn black quickly when crushed. The leaves are also aromatic and highly divided.
Working with Black Walnut
Part(s) Used
Unripe Fruit Hulls
Herb Forms
Tincture, bulk herb, powder
Christopher Hobbs:
“Black walnut is an astringent and cooling herb commonly used for diarrhea and gastrointestinal irritation. It is also used to help treat candida infections. Due to its high tannin and napthaquinone (juglone) content, it is used internally as an anthelmintic and externally for ringworm. Black walnut is useful when traveling to areas where food or water may contain bacteria or parasites, which can cause nausea, abdominal pains, and diarrhea.
Black Walnut has a taste of BITTER and a temperature of COLD.”
Modern Clinical Uses (Herbalists and Naturopaths)
Today, herbalists and naturopaths use black walnut for gastrointestinal health, particularly as a treatment for parasitic infections, fungal overgrowth (like Candida), and digestive issues. It’s often combined with other herbs in cleansing or detoxification regimens. Its astringent qualities make it useful for topical applications on skin ailments like eczema, psoriasis, and acne.
Chemistry and Pharmacology
Black walnut contains several bioactive compounds, including juglone, tannins, and polyphenols. Juglone, the most active compound, has been found to exhibit antimicrobial, antifungal, and antiparasitic effects. Tannins have astringent properties, contributing to its use in gastrointestinal and dermatological applications.
Clinical Trials
Research on black walnut in clinical settings is limited but promising. Some small-scale studies indicate potential efficacy against certain types of parasites and fungal infections. However, more robust clinical trials are needed to verify its efficacy and safety fully.
Summary: Black walnut is a traditional herbal remedy primarily used for its antifungal, antimicrobial, and antiparasitic effects. While modern uses by herbalists and naturopaths show benefits in gastrointestinal and skin health, clinical evidence remains limited. Use it with caution and consult a healthcare provider for personalized guidance.
Generated by ChagGPT; edited by Christopher Hobbs.
Cautions
In moderate doses, black walnut is generally safe for most adults. However, juglone can be toxic in high amounts, particularly when ingested in concentrated forms. People with nut allergies, liver or kidney disorders, or pregnant or breastfeeding individuals should avoid using black walnut. Some potential side effects include nausea, diarrhea, and mild gastrointestinal discomfort.
Avoid prolonged use (more than two weeks at a time). The tincture can stain skin and clothing. Dosages can vary widely, and it’s best to consult a healthcare provider for tailored advice.
Conditions treated with Black Walnut
Condition
Treatment Support
Application
Condition
Treatment Support
antifungal
Application
tincture
Condition
Treatment Support
astringent
Application
tincture
Condition
Treatment Support
anti-diarrhetic, anti-parasitic
Application
tincture
Condition
Treatment Support
antifungal
Application
tincture
The information given here is designed to help you make informed choices about your health. The information is drawn from numerous sources—both traditional medicine practice, from the clinical experience of many herbalists currently practicing, and supported by decades of scientific research from the author. The research most consulted includes human clinical trials that help to determine the most effective and safe herbs for various needs, the best doses, and types of preparations.
The information offered in this database is not intended as a substitute for any that may have been prescribed by your health practitioner or physician.
