How Much Oxalate Is in Corn boiled or canned?
mg oxalate
per serving
Serving: 1/2 cup (80 g)
Verdict: 🟢 Safe
Per 100g: 2 mg
Data: Harvard T.H. Chan SPH (2024)
In practical terms, Corn boiled or canned is a low-risk food for kidney stone patients. Its 2 mg oxalate per serving stays under the 25 mg line, so it can appear in your regular rotation without extra calculation. As always, staying hydrated and getting dietary calcium supports stone prevention.
Among grains & pasta, Corn boiled or canned sits well below 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 Corn boiled or canned is 86% below the category norm. Within its specific category, Corn boiled or canned ranks among the lower-oxalate options. 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 Safe to compare within the same verdict level.
Why does oxalate per 100g matter?
Normalizing to 100 grams removes serving-size differences, so you can judge which food is genuinely denser in oxalate. It matters most when you eat a bigger or smaller portion than the listed serving. Corn boiled or canned comes in at 2 mg oxalate per 1/2 cup (Safe) in the measured database.
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. For Corn boiled or canned, the measured oxalate value is 2 mg per 1/2 cup (Safe).
How does this compare to other foods?
The ratings split at 25 mg (Safe) and 100 mg (Avoid), with 25-99 mg in the Caution band. For context against similar foods, the category pages on OxalateWatch rank every item in that group by oxalate. For context, Corn boiled or canned measures 2 mg per 1/2 cup, rated Safe.