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, shredded | 56 g | 3 mg | Safe |
| 2 x 1 cup, shredded | 112 g | 6 mg | Safe |
| ½ x 1 cup, shredded | 28 g | 1.5 mg | Safe |
🏷️ Tags
🟢 See all Vegetables rated Safe for kidney stones →
⚖️ Compare this food: · vs Beet Powder · vs Swiss Chard →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Is Lettuce safe for kidney stones?
No red flags here. Just 3 mg per 1 cup, shredded — well below the 25 mg danger line. You can keep Lettuce in your regular rotation. Data comes from Harvard (2024).
How much oxalate is in Lettuce?
One 1 cup, shredded of Lettuce = 3 mg oxalate. Scale it up to 100g and you're at 5 mg. Direct measurement from Harvard, 2024. About as reliable as food data gets.
Is Lettuce low or high oxalate?
It's low. 3 mg per 1 cup, shredded is well under the 25 mg danger line. Lettuce is not the food you need to worry about.
What can I eat instead of Lettuce?
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 Lettuce with a fraction of the oxalate.
How much sodium does Lettuce have?
Low sodium: 16 mg/100g. That's a non-issue for kidney stones. Just don't undo it by drowning it in salt during cooking.