🟢 Safe
Oxalate <25 mg/serving
🟡 Caution
Oxalate 25-99 mg/serving
🔴 Avoid
Oxalate ≥100 mg/serving
🟡

Celery, raw, stem only, diced

🟡 Caution — Moderate
30 mg oxalate / serving
Serving: 1 cup (120 g) | Per 100 g: 25 mg
✓ Medically Reviewed Content reviewed by OxalateWatch Editorial Team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

Celery has become a wellness-culture darling thanks to the celery juice trend. But for kidney stone patients, raw celery sits at about 30 mg oxalate per serving — moderate, not negligible. The celery juice phenomenon deserves a specific comment: juicing removes the fiber but concentrates everything else, potentially including oxalate. If you're doing the celery juice thing, know that you're getting a more concentrated dose of whatever oxalate is present. As a food (not a juice), celery is fine in normal amounts — a few stalks in soup or as a snack won't derail your oxalate budget.

📊 Nutrition at a Glance

30 mg
Oxalate / serving
Moderate
97 mg
Sodium / 100g
Low Na
0.5 g
Protein / 100g
Tier 1
46 mg
Calcium / 100g
Tier 1

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1 cup120 g30 mg Caution
2 x 1 cup240 g60 mg Caution
½ x 1 cup60 g15 mg Safe

🏷️ Tags

Vegetables Plant-Based Moderate Oxalate 🟡 Oxalate Caution

🟡 See all Vegetables rated Caution for kidney stones →

⚖️ Compare this food: · vs Zucchini · vs Summer squash

🔗 Related Foods

❓ Frequently Asked Questions

Is Celery safe for kidney stones?

Yellow zone. 30 mg per 1 cup means Celery sits in that middle ground where it's manageable but not risk-free. Half portions help. So does eating it less often.

What's the oxalate content of Celery?

30 mg — that's the oxalate in a standard 1 cup of Celery. For the 100g comparison freaks: 25 mg. Source is Harvard's 2024 food analysis project.

Is Celery a high-oxalate food?

Moderate. Celery has 30 mg oxalate per 1 cup — not high enough to panic, not low enough to ignore. Portions matter with this one.

What are the best low-oxalate alternatives to Celery?

There are almost always safer swaps in the same food family. For Celery, check the related foods section below — the green-marked ones are your best bets. All verified by Harvard (2024).

How much Celery is safe to eat?

The portion math: 1 cup = 30 mg oxalate. Half serving = ~15 mg. With a 100 mg daily oxalate target, 30 mg from one food eats a big chunk of your budget. Go smaller.

How much sodium does Celery have?

Low sodium: 97 mg/100g. That's a non-issue for kidney stones. Just don't undo it by drowning it in salt during cooking.

🔍 Explore More About This Food

📚 Data Sources

Oxalate: Harvard T.H. Chan School of Public Health (2024) via OHF. Nutrition: USDA FoodData Central (SR Legacy 2018 & Foundation Foods).

📖 Key Scientific References

Taylor EN, Curhan GC. Oxalate intake and the risk for nephrolithiasis. J Am Soc Nephrol. 2007;18(7):2198-2204. PMID: 17538185
Borghi L, Schianchi T, Meschi T, et al. Comparison of two diets for the prevention of recurrent stones in idiopathic hypercalciuria. N Engl J Med. 2002;346(2):77-84. DOI: 10.1056/NEJMoa010369
Fink HA, Akornor JW, Garimella PS, et al. Diet, fluid, or supplements for secondary prevention of nephrolithiasis. Eur Urol. 2009;56(1):72-80. DOI: 10.1016/j.eururo.2009.03.031
Ferraro PM, Taylor EN, Gambaro G, Curhan GC. Dietary and lifestyle factors for primary prevention of nephrolithiasis. BMC Nephrol. 2020;21(1):267. PMID: 32652950
Pearle MS, Goldfarb DS, Assimos DG, et al. Medical management of kidney stones: AUA guideline. J Urol. 2014;192(2):316-324. DOI: 10.1016/j.juro.2014.05.006
Liebman M, Costa G. Effects of calcium and magnesium on urinary oxalate excretion after oxalate loads. J Urol. 2000;163(5):1565-1569. PMID: 10751889
Holmes RP, Assimos DG. The impact of dietary oxalate on kidney stone formation. Urol Res. 2004;32(5):311-316. DOI: 10.1007/s00240-004-0437-3
Lin BB, Lin ME, Huang RH, et al. Dietary treatment and fluid intake for prevention of recurrent calcium stones. PLoS One. 2021;16(4):e0250257. PMID: 33872340
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.