NOW Foods Black Walnut Hulls are a classic herbal aid for digestive support, delivering antimicrobial and astringent properties to help balance gut comfort. From NOW Foods, a family owned company since 1968, it’s produced in GMP facilities to ensure safety and purity. Dr. Duke of Duke University notes juglone and tannins in black walnut hulls may contribute antimicrobial and astringent effects in lab environments.

Available Sizes & Variants:

100 capsules - Standard daily pack for ongoing gut support.

Benefits & Features:

• Supports traditional digestive balance in a convenient capsule.
• Clear, vegetarian capsule fits easily into daily routines for steady support.
• Key components like juglone, tannins and polyphenols are thought to contribute antimicrobial and astringent effects, helping explain why black walnut hulls have long been valued for gut support.
• Quality focus: produced in GMP facilities with vegetarian capsules and non-GMO ingredients.
• Clinical evidence in humans is limited, so this product is best used as part of a traditional herbal approach rather than as a proven treatment.

NOW Foods has a long heritage of transparent, quality minded production. This hulls capsule is a single-ingredient herbal supplement derived from Juglans nigra and produced in GMP facilities. The company has been family owned since 1968, with vegetarian capsules and non-GMO status reflecting a steady commitment to purity. For those building a gut health routine, this traditional option pairs well with probiotics, and it is not a berberine or vitamin d supplement.

Black Walnut Juglans nigra (Hulls), Black Walnut Juglans nigra (Hulls)

• GTIN: 733739046062
• Manufacturer: NOW Foods
• Categories: Black WalnutNOW Foods
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1 capsule twice daily with food as needed. Not intended for long-term use. Consult a health care professional for use beyond 14 days. Store in a cool, dry place after opening. For adults only. Consult a physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Black Walnut Hulls (Juglans nigra)

Black walnut hulls are a traditional herbal supplement drawn from the hulls of Juglans nigra and used historically as a digestive tonic and herbal support. This formulation brings the hulls in capsule form for easy use.

The primary ingredient is black walnut hulls, with the source described as Juglans nigra. This product is manufactured to quality standards suitable for vegetarian/vegan formulations and follows GMP practices to ensure safety and purity.

What Does Black Walnut Hulls Do?

Black walnut hulls are involved in antimicrobial and antifungal activity observed in laboratory studies, and they are associated with astringent effects which may influence gut comfort in traditional use. Components such as juglone and tannins are commonly discussed in relation to these properties.

In line with EFSA and NHS-style caution, the information focuses on normal physiological roles of these plant compounds without asserting disease-related outcomes.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

NOW Foods is a well-established, family-owned brand recognised for its commitment to quality and accessibility in the supplement industry, with a heritage going back to 1968. This enduring reputation and established presence in the market make NOW Foods a reliable partner for Welzo, reflecting our preference for manufacturers with proven stability and a track record of reliable product availability. Their emphasis on GMP-compliant manufacturing and visibility as a GMP Quality Assured brand aligns with our standards for safety and consistency, while the non-GMO and vegetarian/vegan positioning supports our broad customer base and product safety expectations. Additionally, NOW Foods’ transparent allergen controls and a history of clear quality practices contribute to our confidence in their manufacturing ethos.

In terms of brand credibility and testing philosophy, NOW Foods operates within GMP facilities and engages routine quality control measures, which we recognise as a solid foundation for product integrity. This brand was evaluated by our medical team for compliance with our rigorous testing protocols, reinforcing our confidence in their manufacturing approach. This collaboration is particularly well-suited for a traditional herbal formulation like Black Walnut Hulls, a single-ingredient supplement that benefits from a focused, quality-forward producer. Welzo’s vetting process—combining historical brand strength, manufacturing standards, and product alignment—guided our partnership decisions, ensuring the NOW Foods line meets our criteria for credibility and reliability.