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 | 1 mg | Safe |
| 2 x 1 serving | 200 g | 2 mg | Safe |
| ½ x 1 serving | 50 g | 0.5 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 St. John's Wort if I have kidney stones?
It's fine. St. John's Wort has 1 mg of oxalate per 1 serving. That's low enough that kidney stone patients don't really need to worry about it. Harvard did the measuring, not us.
What's the oxalate content of St. John's Wort?
Quick math: 1 serving of St. John's Wort = 1 mg oxalate. 100g = 155 mg. Both numbers come from Harvard's latest lab measurements. Not AI, not a database, actual lab work.
Is St. John's Wort low or high oxalate?
It's low. 1 mg per 1 serving is well under the 25 mg danger line. St. John's Wort is not the food you need to worry about.
What can I eat instead of St. John's Wort?
There are almost always safer swaps in the same food family. For St. John's Wort, 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 St. John's Wort?
The oxalate number for St. John's Wort — 1 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.