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 | 13 mg | Safe |
| 2 x 1/4 cup | 60 g | 26 mg | Caution |
| ½ x 1/4 cup | 15 g | 6.5 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
Should I avoid Flour if I have kidney stones?
Short answer: yes. Longer answer: at 13 mg per 1/4 cup, Flour is one of the safer things you can eat if you're watching oxalate. Harvard T.H. Chan SPH measured this directly.
What's the oxalate content of Flour?
The exact figure: 13 mg of oxalate per 1/4 cup of Flour. Works out to 42 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.
Is Flour high in oxalates?
Definitely low. 13 mg oxalate per 1/4 cup. That's the green zone. No restrictions needed for this food.
What are the best low-oxalate alternatives to Flour?
Don't give up the whole category — just pick a safer member of it. The green foods in the related section all work as substitutes for Flour with a fraction of the oxalate.
How much sodium does Flour have?
Low sodium: 0 mg/100g. That's a non-issue for kidney stones. Just don't undo it by drowning it in salt during cooking.