Are Rice Krispies high in oxalate?
A
No. Very low, 3.1 mg per 1 1/2 cups
One study at 3.1 mg, 40 g serving
0 mg50 mg = a day60 mg+
Rice Krispies are low in oxalate: about 3.1 mg per 1 1/2 cups, which is 6% of the 50 mg a day many stone clinics aim for, or 3% of the 100 mg others allow.
50 or 100 mg a day: which target is yours
Where this number comes from
Each row is one published measurement, converted to a 40 g serving (1 1/2 cups). The grade and the range use the rows prepared the way the serving is eaten, and take the middle. How the grades work.
| Per serving | Per 100 g | Preparation | Source |
|---|---|---|---|
| 3.1 mg | 7.75 mg | Ready to eat | Harvard T.H, 2023 |
By Oliver Silen · Data checked November 2, 2026 · Not medical advice