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

Corn, Cornmeal

🟢 Low Oxalate — Low Oxalate
11 mg oxalate / serving
Serving: 1/4 cup (31 g) | Per 100 g: 37 mg
✓ Lab-Verified Data Oxalate values from Harvard T.H. Chan SPH Oxalate Database (2024), measured via ion chromatography. This site is a dietary reference tool, not a medical resource.

📊 Nutrition at a Glance

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

Flavor variants in a product family share the base profile, and the oxalate table follows the base more than the flavoring. Cornmeal Corn measures 11 mg per serving, in the middle of the family range. The useful reading is the family spread: if the range is narrow, flavor choice is free; if it is wide, the flavor with the lower measured value is the easy win. Related forms in this family: Tortilla Corn (7 mg), Grits Corn (19 mg), Popcorn Corn (4 mg).

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1/4 cup31 g11 mg Low Oxalate
2 x 1/4 cup62 g22 mg Low Oxalate
½ x 1/4 cup15 g5.5 mg Low Oxalate

🏷️ Tags

Grains & Pasta 🟢 Oxalate Safe Low Oxalate Plant-Based

🟢 See all Grains & Pasta rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Should I avoid Corn if I have kidney stones?

No red flags here. Just 11 mg per 1/4 cup — well below the 25 mg danger line. You can keep Corn in your regular rotation. Data comes from Harvard (2024).

How much oxalate is in Corn?

Quick math: 1/4 cup of Corn = 11 mg oxalate. 100g = 37 mg. Both numbers come from Harvard's latest lab measurements. Not AI, not a database, actual lab work.

Is Corn low or high oxalate?

Low. 11 mg per 1/4 cup puts Corn firmly in the low-oxalate category. Safe for regular eating if you're managing kidney stones.

What are the best low-oxalate alternatives to Corn?

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 Corn with a fraction of the oxalate.

How reliable is the data for Corn?

Oxalate: very reliable (Harvard 2024 lab measurement). Other nutrients: still being matched to USDA data. The oxalate figure is what matters for a kidney stone decision, and that one's solid.

📚 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.