Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 1 serving | 100 g | 3 mg | Safe |
| 2 x 1 serving | 200 g | 6 mg | Safe |
| ½ x 1 serving | 50 g | 1.5 mg | Safe |
🏷️ Tags
🟢 See all Nuts & Seeds rated Safe for kidney stones →
⚖️ Compare this food: · vs Crackers · vs Seeds →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Can I eat Black Walnut Hull Extract with kidney stones?
Short answer: yes. Longer answer: at 3 mg per 1 serving, Black Walnut Hull Extract is one of the safer things you can eat if you're watching oxalate. Harvard T.H. Chan SPH measured this directly.
How much oxalate is in Black Walnut Hull Extract?
Quick math: 1 serving of Black Walnut Hull Extract = 3 mg oxalate. 100g = 0 mg. Both numbers come from Harvard's latest lab measurements. Not AI, not a database, actual lab work.
Is Black Walnut Hull Extract low or high oxalate?
It's low. 3 mg per 1 serving is well under the 25 mg danger line. Black Walnut Hull Extract is not the food you need to worry about.
What are the best low-oxalate alternatives to Black Walnut Hull Extract?
The easiest move: swap Black Walnut Hull Extract for any 🟢 Safe food in the related foods grid. They're all under 25 mg per serving and verified by Harvard's 2024 data. Problem solved.
How reliable is the data for Black Walnut Hull Extract?
Oxalate: very reliable (Harvard 2024 lab measurement). Other nutrients: still being matched to USDA data. The oxalate figure is what matters for a kidney stone decision, and that one's solid.