Black Walnut 500 mg Ingredients & Drug Interactions
by Solaray
What is this page for?
First and foremost: checking Black Walnut 500 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Black Walnut 500 mg is a dietary supplement by Solaray with 1 active ingredient. Its ingredients are commonly taken for intestinal parasites and worms, digestive complaints, antimicrobial and antifungal support.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Black Walnut 500 mg by Solaray
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: Black Walnut at 500 mg per capsule. The inactive ingredients are cellulose and rice bran extract, which serve as a capsule filler and binder.
Does it work?
No specific claim
The evidence for Black Walnut's effectiveness isn't established in the data we hold. For coronary heart disease and wound healing — the uses studied — we have insufficient reliable evidence to rate whether it works.
That doesn't mean it's ineffective, only that the clinical picture isn't clear enough yet to say.
How safe is it?
Well-documented data
Black Walnut is generally well tolerated when taken orally as a nut, though human safety data are limited and long-term use hasn't been well studied — so short-term use is what we know most about. The leaf, bark, and hull of the plant contain high quantities of tannins, which can cause gastrointestinal upset if ingested.
Tree nuts, including black walnuts, can trigger allergic reactions in sensitive people; tree nuts are a major food allergen in the United States. Because of limited safety information, Black Walnut is best avoided during pregnancy and while breastfeeding.
Meds to double-check
No known interactions
No interactions are documented in our data for Black Walnut. Check your exact medications with the tool on this page to be thorough.
The bottom line
Scorecard at a glanceFully disclosed formula marketed for general wellness rather than one specific gradeable purpose. No medication interactions are currently documented, and safety information is well characterized.
Black Walnut may be worth trying short-term if you're exploring its traditional uses, but understand that evidence for its effectiveness isn't established yet. If you're pregnant, breastfeeding, or allergic to tree nuts, steer clear.
Talk to your pharmacist if you have questions about whether it's right for your situation.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2025.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Black Walnut 500 mg, straight from the product label.
| Brand | Solaray |
|---|---|
| Barcode (UPC) | 076280001808 |
| Net contents | 100 VegCap(s) |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2025 |
| DSLD ID | 338859 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Dairy Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Black Walnut 500 mg by Solaray, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Black Walnut | 500 mg | -- |
Other ingredients: Cellulose, Rice Bran Extract
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)
Solaray Est. 1973 A Brighter Way 1973
General Statements
True Herbs
Since 1973, we've scoured the globe for the highest quality ingredients, connecting you with the most efficacious supplements that help you live brighter & embrace the moments that matter most.
100% PCR Bottles
Formulation
Digestive support
Vegan
FDA Statement of Identity
Dietary Supplements
Seals/Symbols
Lab Verified Vegan
Precautions
Warning: Do not use if safety seal is broken or missing. Keep your licensed health care practitioner informed when using this product. Not recommended for excessive or long term use.
Keep out of reach of children.
California Residents Only Warning: Reproductive harm - www.P65Warning.ca.gov
Suggested/Recommended/Usage/Directions
Directions: Use only as directed. Take 1 VegCap daily with a meal or glass of water.
Storage
Store in a cool, dry place.
Formula
Discussion: Originating ancient in Persia, black walnut hulls have a long history of use throughout the world. Black walnut hulls contain a phytochemical known as juglone, believed be the source of its health benefits. Black walnut may provide nutritive support for intestinal wellness.
FDA Disclaimer Statement
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Black Walnut 500 mg by Solaray label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Black Walnut 500 mg by Solaray
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 VegCap(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.
Black Walnut
No knowninteractions
Black walnut is a tree whose green hulls are traditionally used as a natural antiparasitic and digestive remedy, but solid human evidence for these us...
Black Walnut monograph & interactionsOther (inactive) ingredients: Cellulose, Rice Bran Extract. These complete the product’s ingredient list but are not active constituents.
Black Walnut 500 mg by Solaray Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Black Walnut 500 mg. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Black Walnut 500 mg, from the product label.
Black Walnut 500 mg by Solaray: Common Questions
Does Black Walnut 500 mg by Solaray interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will Black Walnut interact with my medications?
Can I take Black Walnut if I'm pregnant or breastfeeding?
Can Black Walnut cause side effects?
Does Black Walnut actually work for heart health or wound healing?
How long is it safe to take Black Walnut?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Black Walnut 500 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Black Walnut 500 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Black Walnut 500 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 3 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Black Walnut 3 references
- Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Food and Drug Administration. Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA); Public Law 108-282, Title II. Accessed on May 19, 2021. Available at: https://www.fda.gov/food/food-allergensgluten-free-guidance-documents-regulatory-infor
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC