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

Cereal, Bran Flakes

🟡 Caution — Moderate
51 mg oxalate / serving
Serving: 1 serving (100 g) | Per 100 g: 141 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

51 mg
Oxalate / serving
Moderate
4 mg
Sodium / 100g
Low Na
17.3 g
Protein / 100g
Tier 1
58 mg
Calcium / 100g
Tier 1

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1 serving100 g51 mg Caution
2 x 1 serving200 g102 mg Avoid
½ x 1 serving50 g25.5 mg Caution

🏷️ Tags

Grains & Pasta Plant-Based Moderate Oxalate 🟡 Oxalate Caution

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

⚖️ Compare this food: · vs Rice · vs Rice

🔗 Related Foods

❓ Frequently Asked Questions

Can I eat Cereal with kidney stones?

It's a 'watch it' food, not a 'stop it' food. 51 mg per 1 serving puts Cereal in the caution range. Pair it with calcium-rich foods and you'll blunt some of the oxalate absorption.

What's the oxalate content of Cereal?

Here are the numbers: 51 mg oxalate in one 1 serving of Cereal (100g). Per 100 grams, that's 141 mg. Harvard T.H. Chan SPH did the lab work (2024) — these aren't database guesses.

Is Cereal a high-oxalate food?

Moderate. Cereal has 51 mg oxalate per 1 serving — not high enough to panic, not low enough to ignore. Portions matter with this one.

What are the best low-oxalate alternatives to Cereal?

Look at the 'Safe Alternatives' section right below this FAQ. Those foods are all under 25 mg oxalate per serving and in the same category as Cereal. Pick from those.

How much Cereal is safe to eat?

A standard serving (1 serving) of Cereal gives you 51 mg oxalate. Half that = 25.5 mg. That's the difference between a caution-level and a safe-level meal. Portions matter a lot here.

How much sodium does Cereal have?

4 mg sodium per 100g in Cereal. Well under the 460 mg threshold. One less thing on your kidney stone checklist.

🔍 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.