Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
⚠️ Moderate Sodium
Water Chestnuts has 219 mg sodium per 100g. While not critically high, kidney stone patients should monitor sodium intake as excess can raise urinary calcium.
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 1/2 cup | 70 g | 1 mg | Safe |
| 2 x 1/2 cup | 140 g | 2 mg | Safe |
| ½ x 1/2 cup | 35 g | 0.5 mg | Safe |
🏷️ Tags
🟢 See all Vegetables rated Safe for kidney stones →
⚖️ Compare this food: · vs Hemp · vs Algae →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Should I avoid Water Chestnuts if I have kidney stones?
It's fine. Water Chestnuts has 1 mg of oxalate per 1/2 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 Water Chestnuts?
The exact figure: 1 mg of oxalate per 1/2 cup of Water Chestnuts. Works out to 2 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.
Is Water Chestnuts a high-oxalate food?
Definitely low. 1 mg oxalate per 1/2 cup. That's the green zone. No restrictions needed for this food.
What can I eat instead of Water Chestnuts?
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 Water Chestnuts with a fraction of the oxalate.
How much sodium does Water Chestnuts have?
Sodium's not the issue here. Water Chestnuts has 219 mg per 100g — comfortably low. No need to worry about salt pushing extra calcium into your urine with this food.