Is iced tea high in oxalate?
B
No. Low, 8.3 mg per 12 oz
Range 7 to 9.6 mg across 2 studies, 355 g serving
0 mg50 mg = a day60 mg+
Iced tea is low in oxalate: about 8.3 mg per 12 oz, which is 17% 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 355 g serving (12 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 |
|---|---|---|---|
| 7 mg | 1.96 mg | ready to drink | Siener R, Seidler A, Voss S, Hesse A, 2017 |
| 9.6 mg | 2.7 mg | diet, ready to drink | Harvard T.H, 2023 |
By Oliver Silen · Data checked November 2, 2026 · Not medical advice