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

Sparkling water, flavored, unsweetened

🟢 Safe — Low Oxalate
0 mg oxalate / serving
Serving: 12 fl oz (355 g) | Per 100 g: 0 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

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

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
12 fl oz355 g0 mg Safe
2 x 12 fl oz710 g0 mg Safe
½ x 12 fl oz177 g0 mg Safe

🏷️ Tags

Beverages 🟢 Oxalate Safe Low Oxalate

🟢 See all Beverages rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Should I avoid Sparkling water if I have kidney stones?

No red flags here. Just 0 mg per 12 fl oz — well below the 25 mg danger line. You can keep Sparkling water in your regular rotation. Data comes from Harvard (2024).

What's the oxalate content of Sparkling water?

Quick math: 12 fl oz of Sparkling 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 Sparkling water low or high oxalate?

Definitely low. 0 mg oxalate per 12 fl oz. That's the green zone. No restrictions needed for this food.

What are the best low-oxalate alternatives to Sparkling water?

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

Is Sparkling water a good drink for kidney stones?

As far as kidney stones go, Sparkling 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 Sparkling water?

The oxalate number for Sparkling water — 0 mg per serving — is from Harvard's 2024 lab analysis. That part is solid. The USDA nutrition data (sodium, protein, calcium) is still being matched — we'll update when it's available.

🔍 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.