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Black Walnut Purchase & Information

Alternative Names

Carya, Green Walnut, Green Black Walnut, Jupiter's Nuts, Nogal Negro, Nogal Americano, Noix, Nogueira-preta, Noix de Perse, Noix de Jupiter, Noyer d'Amérique, Noix Verte, Noyer Noir Américain and Noyer Noir, Schwarze Walnuss, Walnut, Walnoot CAUTION: Please refer to separate listing for English walnut

Scientific Name

Juglans Nigra

Why Do People Use Black Walnut ?

For oral purposes, black walnut powder is utilized for the treatment of: • Syphilis • Leukemia • Diphtheria • As an anthelmintic agent For topical purposes, Juglans nigra (Black walnut) is generally used as an: • Insecticide • Hair dye • As a gargle • For healing of wounds

Is It Safe To Use?

Likely Safe - It is possibly safe when it is consumed for short term, orally and appropriately Likely Unsafe - Black walnut powder is unsafe to use when it is applied topically. The reason is that it contains the Juglone constituents. Using juglone contained Walnut (particularly English walnut) could increase potential risks of lip leukoplakia and tongue cancer. Likely Unsafe in Lactation and Pregnancy - While in pregnancy, Juglans nigra usage should be avoided- especially when to be applied topically. As for oral consumption, black walnut powder should be avoided because regarding its safety there is insufficient reliable information available.

How Effective Is Black Walnut ?

Most effective part of Juglans nigra is its hull. There are approx. 45% tannins in walnut hull, which result in strong astringent impacts on the mucosal tissues. It is observed that tannins internally work by dehydrating tissue of mucosa, which decreases secretion. External astringent function of black walnut powder results in the formation of hard and constricted layer of cells. Those plants which possess 10% tannins could be the reason of kidney damage, gastrointestinal upset and liver damage. Tannins are thought to be carcinogenic in nature. But this property of tannins has not been proved in even animal models of studies. The role of tannins in the progression or regression of cancer is uncertain. Some studies suggest that tannins are the basic reason behind the development of some cancers. While other studies show that these chemicals can actually reverse the formation of different types of cancer. The potential risk of nasal cancer or esophageal may be connected with those individuals who regularly ingest herbs with sizeable tannin concentrations.

How Black Walnut Works?

Not known,

What Are The Side Effects /Adverse Reactions of Black Walnut ?

Not known.

How Black Walnut Interacts With Other Herbs and Supplements?

Tannin-Containing Herbs - There is high percentage of tannins in herbs like black walnut, which may create constituents precipitation of other herbs.

How Black Walnut Interacts With Drugs?

Oral Drugs - Black walnut powder interaction rating with oral drugs is moderate, so be aware of this mixture. Theoretically, oral concomitant may use of this mixture cause precipitation of the side effects of few drugs because of hull of black walnut is high in tannin content.

How Black Walnut Interacts With Foods?

Not known.

How Black Walnut Interacts With Lab Tests?

Not known.

How Black Walnut Interacts With Diseases and Conditions?

Not known.

What Should Be the Dose/Administration of Black Walnut ?

No typical dosage.



General Certificate of Analysis (COA)

Specification sheet links below are a standard copy of the COA less the batch or lot number and manufactures dates. Specification sheet can be dated and should only be considered as a general information. Please contact and request an up to date COA if needed for specific updated information before placing order by filling out the contact form with product name and SKU number. If ordering quantities of twenty five kilos or more contact for availability.


These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

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