Is avocado high in oxalate?
A
No. Very low, 2.8 mg per 1/3 avocado
Range <1 to 4.8 mg across 2 studies, 50 g serving
0 mg50 mg = a day60 mg+
Avocado is low in oxalate: about 2.8 mg per 1/3 avocado, which is 6% 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 50 g serving (1/3 avocado). 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 |
|---|---|---|---|
| <1 mg | 1.3 mg | Raw (n=2) | Hönow R., Hesse A, 2002via Foods 2023;12:3201, Table 5 (CC BY 4.0) |
| 4.8 mg | 9.5 mg | Raw | Harvard T.H, 2023 |
By Oliver Silen · Data checked November 2, 2026 · Not medical advice