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 | 23 mg | Safe |
| 2 x 1 serving | 200 g | 46 mg | Caution |
| ½ x 1 serving | 50 g | 11.5 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 Brownies if I have kidney stones?
Short answer: yes. Longer answer: at 23 mg per 1 serving, Brownies is one of the safer things you can eat if you're watching oxalate. Harvard T.H. Chan SPH measured this directly.
How much oxalate is in Brownies?
One 1 serving of Brownies = 23 mg oxalate. Scale it up to 100g and you're at 0 mg. Direct measurement from Harvard, 2024. About as reliable as food data gets.
Is Brownies low or high oxalate?
Definitely low. 23 mg oxalate per 1 serving. That's the green zone. No restrictions needed for this food.
What are the best low-oxalate alternatives to Brownies?
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 Brownies with a fraction of the oxalate.
How reliable is the data for Brownies?
The 23 mg oxalate figure is direct from Harvard's lab — measured, not estimated. The sodium/protein/calcium numbers aren't fully matched yet. When they are, we'll update.