Are potato chips high in oxalate?
C
Moderately. Moderate, 13 mg per 1 oz bag
Range 12 to 19 mg across 2 studies, 28 g serving
0 mg50 mg = a day60 mg+
Lower-oxalate swap: Popcorn, grade A, about 4.9 mg per 3 cups popped.
Potato chips have a moderate amount of oxalate: about 13 mg per 1 oz bag, which is 26% of the 50 mg a day many stone clinics aim for.
Where this number comes from
Each row is one published measurement, converted to a 28 g serving (1 oz bag). 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 |
|---|---|---|---|
| 12 mg | 42.7 mg | regular | Harvard T.H, 2023 |
| 12 mg | 43.21 mg | Chips | Harvard T.H, 2023 |
| 13 mg | 47 mg | Chips (n=1) | Hönow R., Hesse A, 2002via Foods 2023;12:3201, Table 5 (CC BY 4.0) |
| 19 mg | 68.1 mg | baked | Harvard T.H, 2023 |
By Oliver Silen · Data checked November 2, 2026 · Not medical advice