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 cup | 30 g | 2 mg | Safe |
| 2 x 1 cup | 60 g | 4 mg | Safe |
| ½ x 1 cup | 15 g | 1 mg | Safe |
🏷️ Tags
🟢 See all Vegetables rated Safe for kidney stones →
⚖️ Compare this food: · vs Beets · vs Herbs and Spices →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Is Spinach safe for kidney stones?
It's fine. Spinach has 2 mg of oxalate per 1 cup. That's low enough that kidney stone patients don't really need to worry about it. Harvard did the measuring, not us.
How much oxalate is in Spinach?
The exact figure: 2 mg of oxalate per 1 cup of Spinach. Works out to 0 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.
Is Spinach a high-oxalate food?
Low. 2 mg per 1 cup puts Spinach firmly in the low-oxalate category. Safe for regular eating if you're managing kidney stones.
What can I eat instead of Spinach?
Look at the 'Safe Alternatives' section right below this FAQ. Those foods are all under 25 mg oxalate per serving and in the same category as Spinach. Pick from those.
How reliable is the data for Spinach?
The oxalate number for Spinach — 2 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.