🔴 High Oxalate
High-oxalate foods — 100-299 mg per serving. Based on Harvard T.H. Chan SPH oxalate data (2024).
32 foods in this collection
High-oxalate foods measure 100 mg or more per serving — the range the site flags as Avoid. These are the foods that make the difference between a comfortable oxalate day and one that exceeds the budget. For calcium oxalate stone formers, this list deserves the most attention: knowing exactly which everyday foods are on it (and their serving sizes) is the core of the diet.
🍽️ Foods in This Collection
❓ Frequently Asked Questions
How many foods are rated "High Oxalate"?
There are 32 foods in this category in our database, all verified against Harvard T.H. Chan SPH (2024) oxalate measurements.
What does this rating mean for my kidney stone diet?
This rating comes from Harvard's 2024 oxalate measurements. It helps you make informed choices, but it's one data point. Your overall diet pattern matters more than any single food.
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.
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.