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 | 6 mg | Safe |
| 2 x 1 serving | 200 g | 12 mg | Safe |
| ½ x 1 serving | 50 g | 3 mg | Safe |
🏷️ Tags
🟢 See all Vegetables rated Safe for kidney stones →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Should I avoid Willow bark if I have kidney stones?
Don't overthink this one. Willow bark has 6 mg oxalate per 1 serving. That's solidly safe territory for kidney stones. The number is from Harvard's latest lab work.
What's the oxalate content of Willow bark?
Here are the numbers: 6 mg oxalate in one 1 serving of Willow bark (100g). Per 100 grams, that's 0 mg. Harvard T.H. Chan SPH did the lab work (2024) — these aren't database guesses.
Is Willow bark low or high oxalate?
Definitely low. 6 mg oxalate per 1 serving. That's the green zone. No restrictions needed for this food.
What can I eat instead of Willow bark?
There are almost always safer swaps in the same food family. For Willow bark, check the related foods section below — the green-marked ones are your best bets. All verified by Harvard (2024).
How reliable is the data for Willow bark?
The oxalate number for Willow bark — 6 mg per serving — is from Harvard's 2024 lab analysis. That part is solid. The USDA nutrition data (sodium, protein, calcium) is still being matched — we'll update when it's available.