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 cup | 240 g | 0 mg | Safe |
| 2 x 1 cup | 480 g | 0 mg | Safe |
| ½ x 1 cup | 120 g | 0 mg | Safe |
🏷️ Tags
🟢 See all Beverages rated Safe for kidney stones →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Is Tonic water safe for kidney stones?
No red flags here. Just 0 mg per 1 cup — well below the 25 mg danger line. You can keep Tonic water in your regular rotation. Data comes from Harvard (2024).
How much oxalate is in Tonic water?
Quick math: 1 cup of Tonic water = 0 mg oxalate. 100g = 0 mg. Both numbers come from Harvard's latest lab measurements. Not AI, not a database, actual lab work.
Is Tonic water a high-oxalate food?
Definitely low. 0 mg oxalate per 1 cup. That's the green zone. No restrictions needed for this food.
What can I eat instead of Tonic water?
Plenty of options. Scroll down to Related Foods — every 🟢 green item there is a lower-oxalate alternative to Tonic water. Same food group, way less oxalate.
Is Tonic water a good drink for kidney stones?
As far as kidney stones go, Tonic water is in the safe zone for beverages at 0 mg per serving. Hydration matters more than anything — so drink plenty of water regardless of what else you consume.
How reliable is the data for Tonic water?
Oxalate: very reliable (Harvard 2024 lab measurement). Other nutrients: still being matched to USDA data. The oxalate figure is what matters for a kidney stone decision, and that one's solid.