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 shell | 13 g | 1 mg | Safe |
| 2 x 1 shell | 26 g | 2 mg | Safe |
| ½ x 1 shell | 6 g | 0.5 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 Tostada shell if I have kidney stones?
Don't overthink this one. Tostada shell has 1 mg oxalate per 1 shell. That's solidly safe territory for kidney stones. The number is from Harvard's latest lab work.
How much oxalate is in Tostada shell?
Here are the numbers: 1 mg oxalate in one 1 shell of Tostada shell (13g). Per 100 grams, that's 0 mg. Harvard T.H. Chan SPH did the lab work (2024) — these aren't database guesses.
Is Tostada shell a high-oxalate food?
Nope. Tostada shell is a low-oxalate food — just 1 mg per 1 shell. Well under the 25 mg cutoff. You're in the clear with this one.
What are the best low-oxalate alternatives to Tostada shell?
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 Tostada shell with a fraction of the oxalate.
How reliable is the data for Tostada shell?
The 1 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.