Are fish sticks high in oxalate?
B
No. Low, 5.2 mg per 3 oz
One study at 5.2 mg, 85 g serving
0 mg50 mg = a day60 mg+
Fish sticks are low in oxalate: about 5.2 mg per 3 oz, which is 10% of the 50 mg a day many stone clinics aim for, or 5% 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 85 g serving (3 oz). 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 |
|---|---|---|---|
| 5.2 mg | 6.12 mg | Frozen, heated | Harvard T.H. Chan School of Public Health [1] |
By Oliver Silen · Data checked November 2, 2026 · Not medical advice
