Vegetables

Is green bell pepper high in oxalate?

Lower-oxalate swap: Zucchini, grade A, about <1 mg per 1/2 cup cooked.

Green bell pepper is high in oxalate: about 25 mg per 1 medium pepper, which is 50% of the 50 mg a day many stone clinics aim for, or 25% of the 100 mg others allow.

If your doctor has put you on a low-oxalate diet, eat it with something high in calcium, like milk, yogurt or cheese. Calcium in the same meal binds oxalate in the gut, so less of it reaches your urine. How much calcium, and what if you don't eat dairy.

50 or 100 mg a day: which target is yours

Why sources disagree on green bell pepper

The 2 studies here run from 13 to 37 mg per 1 medium pepper, measured between 2007 and 2023. Variety, growing conditions and lab method all move the number.

Where this number comes from

Each row is one published measurement, converted to a 119 g serving (1 medium pepper). The grade and the range use the rows prepared the way the serving is eaten, and take the middle. How the grades work.

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