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

Chocolate, RTC

🟢 Safe — Low Oxalate
3 mg oxalate / serving
Serving: 1 bottle (250 g) | Per 100 g: 1 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

3 mg
Oxalate / serving
Low Oxalate
63 mg
Sodium / 100g
Low Na
3.0 g
Protein / 100g
Tier 1
100 mg
Calcium / 100g
Tier 1

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1 bottle250 g3 mg Safe
2 x 1 bottle500 g6 mg Safe
½ x 1 bottle125 g1.5 mg Safe

🏷️ Tags

Beverages 🟢 Oxalate Safe Low Oxalate Snacks & Sweets Calcium-Rich

🟢 See all Beverages rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Should I avoid Chocolate if I have kidney stones?

No red flags here. Just 3 mg per 1 bottle — well below the 25 mg danger line. You can keep Chocolate in your regular rotation. Data comes from Harvard (2024).

How much oxalate is in Chocolate?

One 1 bottle of Chocolate = 3 mg oxalate. Scale it up to 100g and you're at 1 mg. Direct measurement from Harvard, 2024. About as reliable as food data gets.

Is Chocolate a high-oxalate food?

Low. 3 mg per 1 bottle puts Chocolate firmly in the low-oxalate category. Safe for regular eating if you're managing kidney stones.

What are the best low-oxalate alternatives to Chocolate?

Substitutes exist. The safe alternatives listed below are all low-oxalate foods in the same family as Chocolate. Grab one of those and you dodge the oxalate while keeping similar flavors.

Is Chocolate a good drink for kidney stones?

For beverages, 3 mg oxalate per serving puts Chocolate in the safe category. Most of your daily fluids should still be water. This one's an occasional drink, not your hydration strategy.

How much sodium does Chocolate have?

The sodium level is fine — 63 mg/100g. If all your foods looked like this on sodium, you'd be in great shape for stone prevention.

🔍 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.