🔴 Very High Oxalate
Very high oxalate foods — 300+ mg per serving. Based on Harvard T.H. Chan SPH oxalate data (2024).
0 foods in this collection
Very-high-oxalate foods exceed 200 mg per serving — double the avoid threshold and the most concentrated oxalate sources in the database. A single serving of some of these foods can dominate a day's entire oxalate budget. For recurrent stone formers, these are effectively elimination foods, not portion foods. The practical move is finding the low-oxalate swaps listed on the individual food pages.
🍽️ Foods in This Collection
❓ Frequently Asked Questions
How many foods are rated "Very High Oxalate"?
There are 0 foods in this category in our database, all verified against Harvard T.H. Chan SPH (2024) oxalate measurements.
Should I eat foods labeled this way?
This rating is based on lab-measured oxalate from Harvard T.H. Chan SPH (2024). It's a reliable guide, but your individual tolerance depends on stone type, medication, and overall diet — discuss with your dietitian.
How is this rating determined?
The rating is based on mg of oxalate per serving, measured by Harvard T.H. Chan SPH's laboratory analysis (2024). No estimates, no databases — direct measurement.
Can I trust this label?
Yes — this isn't an opinion or guess. The rating uses Harvard lab measurements of oxalate content. That said, how your body handles oxalate varies by individual.