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

Radicchio, raw, shredded

🟢 Safe — Low Oxalate
1 mg oxalate / serving
Serving: 1/2 cup (49 g) | Per 100 g: 2 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

1 mg
Oxalate / serving
Low Oxalate
8 mg
Sodium / 100g
Low Na
1.3 g
Protein / 100g
Tier 1
30 mg
Calcium / 100g
Tier 1

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1/2 cup49 g1 mg Safe
2 x 1/2 cup98 g2 mg Safe
½ x 1/2 cup24 g0.5 mg Safe

🏷️ Tags

Vegetables 🟢 Oxalate Safe Low Oxalate

🟢 See all Vegetables rated Safe for kidney stones →

⚖️ Compare this food: · vs Hearts of Palm · vs Soup

🔗 Related Foods

❓ Frequently Asked Questions

Is Radicchio safe for kidney stones?

Yep, you're good. Radicchio clocks in at 1 mg oxalate per 1/2 cup — way under the 25 mg cutoff. Eat it without the stress. Measured by Harvard, not guessed.

What's the oxalate content of Radicchio?

1 mg — that's the oxalate in a standard 1/2 cup of Radicchio. For the 100g comparison freaks: 2 mg. Source is Harvard's 2024 food analysis project.

Is Radicchio high in oxalates?

Nope. Radicchio is a low-oxalate food — just 1 mg per 1/2 cup. Well under the 25 mg cutoff. You're in the clear with this one.

What are the best low-oxalate alternatives to Radicchio?

The easiest move: swap Radicchio for any 🟢 Safe food in the related foods grid. They're all under 25 mg per serving and verified by Harvard's 2024 data. Problem solved.

How much sodium does Radicchio have?

Sodium's not the issue here. Radicchio has 8 mg per 100g — comfortably low. No need to worry about salt pushing extra calcium into your urine with this food.

🔍 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.