Are grapes high in oxalate?

No. Very low, 2.5 mg per 1 cup

Range 2.4 to 2.6 mg across 2 studies, 151 g serving

0 mg50 mg = a day60 mg+

Grapes are low in oxalate: about 2.5 mg per 1 cup, which is 5% 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 151 g serving (1 cup). 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
2.4 mg	1.58 mg	Raw	Harvard T.H, 2023
2.6 mg	1.7 mg	Green, raw (n=9)	Hönow R., Hesse A, 2002via Foods 2023;12:3201, Table 5 (CC BY 4.0)

By Oliver Silen · Data checked November 2, 2026 · Not medical advice

Other fruits, lowest first

A Passion fruit <1 mg per 1 fruit A Watermelon <1 mg per 1 cup diced A Dried cranberries <1 mg per 1/4 cup A Plum <1 mg per 1 plum A Apricot 1.3 mg per 1 apricot A Mango 1.5 mg per 1 cup sliced

All fruits on one chart