How Much Oxalate Is in Parmesan cheese?
mg oxalate
per serving
Serving: 2 tbsp (10 g)
Verdict: 🟢 Safe
Per 100g: 0 mg
Data: Harvard T.H. Chan SPH (2024)
In practical terms, Parmesan cheese is a low-risk food for kidney stone patients. Its 0 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 dairy & eggs, Parmesan cheese sits well below the category average of 3 mg. For context, 87 out of 91 dairy & eggs (95%) are rated 🟢 Safe (under 25 mg oxalate/serving). The average dairy & eggs in our database has 3 mg oxalate per serving — which means Parmesan cheese is 100% below the category norm. Within its specific category, Parmesan cheese 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 dairy & eggs rated Safe to compare within the same verdict level.
Why does oxalate per 100g matter?
Per-100g values put every food on the same scale, which is handy when serving sizes differ a lot between foods — or when your portion doesn't match the standard serving. It lets you compare apples to apples on oxalate density. Parmesan cheese comes in at 0 mg oxalate per 2 tbsp (Safe) in the measured database.
How accurate is the oxalate measurement?
The measurements use ion chromatography, the accepted reference method for oxalate. That means real lab values for each food rather than inferred numbers. Some natural variation exists between samples, but this is the strongest published data set. For Parmesan cheese, the measured oxalate value is 0 mg per 2 tbsp (Safe).
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. For Parmesan cheese, the measured oxalate value is 0 mg per 2 tbsp (Safe).