How Much Oxalate Is in Cereals?

Harvard's 2024 analysis found 105 mg of oxalate in one serving of Cereals (1/2 cup). At the 100-gram level, that's 123 mg. This puts Cereals in the Avoid range (100+ mg per serving). Keep in mind: oxalate varies by growing conditions, preparation method, and variety — but Harvard's measurement is the most reliable reference available.

✓ Medically Reviewed Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

105
mg oxalate
per serving

Food: Cereals, Buckwheat
Serving: 1/2 cup (85 g)
Verdict: 🔴 Avoid
Per 100g: 123 mg
Data: Harvard T.H. Chan SPH (2024)

🔄 Lower-Oxalate Alternatives

💡 What This Means for Your Diet

What this means: Cereals is rated Avoid (🔴). At 105 mg oxalate per serving, Cereals exceeds the 100 mg threshold. Kidney stone patients should limit or avoid this food. If you do eat it, keep portions very small, pair it with calcium, and drink extra water. Check the full food page for safer alternatives.

📊 How Cereals Compares

Among grains & pasta, Cereals sits well above the category average of 14 mg. For context, 170 out of 201 grains & pasta (84%) are rated 🟢 Safe (under 25 mg oxalate/serving). The average grains & pasta in our database has 14 mg oxalate per serving — which means Cereals is 656% above the category norm. Within its specific category, Cereals ranks on the higher end for oxalate. This context matters because two 'Safe' foods can have very different oxalate levels — one might have 5 mg while another has 24 mg. Both are Safe, but the first gives you more dietary flexibility. Browse all grains & pasta rated Avoid to compare within the same verdict level.

❓ Related Questions

Why does oxalate per 100g matter?

The per-100g number lets you compare foods on an equal-weight basis, regardless of serving size. It's useful when two foods have very different typical serving sizes, or when you eat more or less than a standard serving.

How accurate is the oxalate measurement?

Harvard's 2024 analysis used ion chromatography — the gold standard for oxalate measurement. These are direct lab values, not estimates or database calculations. Variability exists between samples, but this is the most reliable reference available.

How does this compare to other foods?

Foods under 25 mg per serving are rated Safe. Foods between 25-99 mg are Caution. 100+ mg is Avoid. Check the food's category page on OxalateWatch to see how it compares to similar foods.

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.