<!-- Google tag (gtag.js) --> <script async src="https://www.googletagmanager.com/gtag/js?id=G-H0VYXYRX2J"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-H0VYXYRX2J'); </script> Is Olives Safe for Kidney Stones? | Safe | OxalateWatch
🟢 Safe
Oxalate <25 mg/serving
🟡 Caution
Oxalate 25-99 mg/serving
🔴 Avoid
Oxalate ≥100 mg/serving
🟢

Olives, canned, green, stuffed or unstuffed

🟢 Safe — Low Oxalate
11 mg oxalate / serving
Serving: 6 medium olives (23 g) | Per 100 g: 50 mg
✓ Medically Reviewed Content reviewed by OxalateWatch Editorial Team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

📊 Nutrition at a Glance

11 mg
Oxalate / serving
Low Oxalate
Sodium / 100g
Pending
Protein / 100g
Pending
Calcium / 100g
Pending

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
6 medium olives23 g11 mg Safe
2 x 6 medium olives46 g22 mg Safe
½ x 6 medium olives11 g5.5 mg Safe

🏷️ Tags

Fruits 🟢 Oxalate Safe Low Oxalate Plant-Based Calcium-Rich High Sodium Processed Food

🟢 See all Fruits rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Can I eat Olives with kidney stones?

It's fine. Olives has 11 mg of oxalate per 6 medium olives. That's low enough that kidney stone patients don't really need to worry about it. Harvard did the measuring, not us.

What's the oxalate content of Olives?

Quick math: 6 medium olives of Olives = 11 mg oxalate. 100g = 50 mg. Both numbers come from Harvard's latest lab measurements. Not AI, not a database, actual lab work.

Is Olives low or high oxalate?

It's low. 11 mg per 6 medium olives is well under the 25 mg danger line. Olives is not the food you need to worry about.

What can I eat instead of Olives?

Look at the 'Safe Alternatives' section right below this FAQ. Those foods are all under 25 mg oxalate per serving and in the same category as Olives. Pick from those.

How reliable is the data for Olives?

The 11 mg oxalate figure is direct from Harvard's lab — measured, not estimated. The sodium/protein/calcium numbers aren't fully matched yet. When they are, we'll update.

🔍 Explore More About This Food

📚 Data Sources

Oxalate: Harvard T.H. Chan School of Public Health (2024) via OHF.

📖 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.