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

Flour, Teff, Brown

🟡 Caution — Moderate
75 mg oxalate / serving
Serving: 1/4 cup (34 g) | Per 100 g: 222 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

75 mg
Oxalate / serving
Moderate
Sodium / 100g
Pending
Protein / 100g
Pending
Calcium / 100g
Pending

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1/4 cup34 g75 mg Caution
2 x 1/4 cup68 g150 mg Avoid
½ x 1/4 cup17 g37.5 mg Caution

🏷️ Tags

Grains & Pasta Plant-Based Moderate Oxalate 🟡 Oxalate Caution

🟡 See all Grains & Pasta rated Caution for kidney stones →

⚖️ Compare this food: · vs Pasta · vs Pasta

🔗 Related Foods

❓ Frequently Asked Questions

Can I eat Flour with kidney stones?

Yellow zone. 75 mg per 1/4 cup means Flour sits in that middle ground where it's manageable but not risk-free. Half portions help. So does eating it less often.

What's the oxalate content of Flour?

75 mg — that's the oxalate in a standard 1/4 cup of Flour. For the 100g comparison freaks: 222 mg. Source is Harvard's 2024 food analysis project.

Is Flour low or high oxalate?

Moderate. Flour has 75 mg oxalate per 1/4 cup — not high enough to panic, not low enough to ignore. Portions matter with this one.

What are the best low-oxalate alternatives to Flour?

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

How reliable is the data for Flour?

The 75 mg oxalate figure is direct from Harvard's lab — measured, not estimated. The sodium/protein/calcium numbers aren't fully matched yet. When they are, we'll update.

How much Flour is safe to eat?

Think garnish, not main dish. Flour at 75 mg per 1/4 cup is a lot for one food. Use smaller amounts spread across meals or as a flavor accent rather than the centerpiece.

🔍 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.