Home › Compare › Celery vs Lettuce, iceberg

🟢 Lettuce, iceberg VS 🟡 Celery

Here's the straight comparison: Celery contains 30 mg oxalate per serving. Lettuce, iceberg? 1 mg. That 30x gap means Celery is the clear winner for anyone tracking oxalate for kidney stone prevention.

✓ Medically Reviewed Content reviewed by OxalateWatch editorial team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

⚖️ Head-to-Head Comparison

🟢
Lettuce, iceberg
Safe — Low Oxalate
1 mg oxalate / serving
Serving: 1 cup shredded (72 g)
Per 100 g: 0 mg oxalate
Sodium: — | Calcium: — | Protein: —
🟡
Celery
Caution — Moderate Oxalate
30 mg oxalate / serving
Serving: 1 cup (120 g)
Per 100 g: 25 mg oxalate
Sodium: 97 mg/100g | Calcium: 46 mg/100g | Protein: 0.5 g/100g

🏆 The Verdict: Choose Lettuce, iceberg

At 1 mg oxalate per serving (rated Safe), Lettuce, iceberg is the clear winner over Celery (30 mg, Caution). The 30x difference comes from Harvard's 2024 lab measurements — this isn't an estimate or guess. Build your meals around Lettuce, iceberg and use Celery sparingly, if at all.

🔍 Key Takeaways

**Oxalate gap:** 30 mg vs 1 mg per serving — a 30x difference. One of these is significantly easier to fit into a kidney stone diet.
**Verdicts:** Celery is rated **Caution (25-99 mg/serving)**; Lettuce, iceberg is rated **Safe (under 25 mg/serving)**.
**Serving strategy:** If you choose Celery, consider a half portion or pair it with a calcium source. Lettuce, iceberg can be eaten more freely.
**Cooking tip:** For either vegetable, boiling and discarding the cooking water can reduce soluble oxalate by 30-50%. Steaming or eating raw preserves more oxalate.

❓ Frequently Asked Questions

Which is better for kidney stones — Celery or Lettuce, iceberg?

The numbers leave no doubt: Lettuce, iceberg (1 mg oxalate/serving, Safe) beats Celery (30 mg, Caution) by a factor of 30x. For kidney stone patients, Lettuce, iceberg is the pick. Celery is a food to approach with portion awareness.

Can I eat Celery and Lettuce, iceberg together?

Yes, but watch your portions. Combined, you're looking at roughly 31 mg oxalate. If one is high-oxalate, keep it to a small side portion. The lower-oxalate food can fill most of your plate.

How should I prepare Celery vs Lettuce, iceberg differently?

Boil and drain Celery to cut oxalate. Lettuce, iceberg can be prepared any way — it's already in the safe zone regardless of cooking method. If making a dish with both, prepare them separately so you can boil the higher-oxalate one.

What are good substitutes if I want to avoid Celery?

Your best bet: Lettuce, iceberg. It's in the same category and has dramatically less oxalate. Check the Related Foods section on Celery's page for more specific alternatives verified by Harvard's 2024 data.

Browse all Vegetables 🟢 Low Oxalate Foods Lettuce, iceberg page Celery page
This is dietary reference information, NOT medical advice. Talk to your doctor or a registered dietitian before changing your diet. Oxalate tolerance varies by person, stone type, and medication.