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

Mangold or Spinach beet

🔴 Avoid — Very High
590 mg oxalate / serving
Serving: 1 serving (100 g) | Per 100 g: 874 mg
✓ Medically Reviewed Content reviewed by OxalateWatch Editorial Team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

Mangold, also called spinach beet, is one of the highest-oxalate foods ever measured: 590 mg per half-cup. That's worse than regular spinach. If you have calcium oxalate stones, this is not a food you eat and wonder about later — it's a hard avoid. The stems can be cooked separately and may have less oxalate, but the leaves are firmly in the red zone.

📊 Nutrition at a Glance

590 mg
Oxalate / serving
Very High
79 mg
Sodium / 100g
Low Na
2.9 g
Protein / 100g
Tier 1
99 mg
Calcium / 100g
Tier 1

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1 serving100 g590 mg Avoid
2 x 1 serving200 g1180 mg Avoid
½ x 1 serving50 g295 mg Avoid

🏷️ Tags

Vegetables Plant-Based High Oxalate 🔴 Oxalate Avoid

🔴 See all Vegetables rated Avoid for kidney stones →

⚖️ Compare this food: · vs Tomato juice · vs Radish

🔗 Related Foods

❓ Frequently Asked Questions

Can I eat Mangold or Spinach beet with kidney stones?

Yeah, this one's in the red. 590 mg oxalate per 1 serving is way over the safe threshold. Mangold or Spinach beet is a food to avoid or eat very rarely. There are better options in the same category.

What's the oxalate content of Mangold or Spinach beet?

The exact figure: 590 mg of oxalate per 1 serving of Mangold or Spinach beet. Works out to 874 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.

Is Mangold or Spinach beet low or high oxalate?

Yeah, it's high. 590 mg per 1 serving is way over the safe threshold. Mangold or Spinach beet belongs in the 'limit severely' column.

What are the best low-oxalate alternatives to Mangold or Spinach beet?

Don't give up the whole category — just pick a safer member of it. The green foods in the related section all work as substitutes for Mangold or Spinach beet with a fraction of the oxalate.

How much sodium does Mangold or Spinach beet have?

The sodium level is fine — 79 mg/100g. If all your foods looked like this on sodium, you'd be in great shape for stone prevention.

Does boiling Mangold or Spinach beet reduce the oxalate?

Here's the cooking hack: boil Mangold or Spinach beet, discard the water. That's where the dissolved oxalate goes. Expect roughly 30-50% reduction. Steaming is a distant second place.

Can I eat Mangold or Spinach beet if I pair it with dairy?

Eat Mangold or Spinach beet with calcium-rich food at the same meal. The calcium grabs oxalate in your digestive tract before your kidneys ever see it. Yogurt, cheese, or milk work. Calcium pills between meals don't.

🔍 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.