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 |
|---|---|---|---|
| 1/4 cup | 30 g | 10 mg | Safe |
| 2 x 1/4 cup | 60 g | 20 mg | Safe |
| ½ x 1/4 cup | 15 g | 5 mg | Safe |
🏷️ Tags
🟢 See all Grains & Pasta rated Safe for kidney stones →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Is Flour safe for kidney stones?
It's fine. Flour has 10 mg of oxalate per 1/4 cup. 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 Flour?
The exact figure: 10 mg of oxalate per 1/4 cup of Flour. Works out to 32 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.
Is Flour low or high oxalate?
It's low. 10 mg per 1/4 cup is well under the 25 mg danger line. Flour is not the food you need to worry about.
What are the best low-oxalate alternatives to Flour?
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 Flour. Pick from those.
How reliable is the data for Flour?
The oxalate number for Flour — 10 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.