Overview

Oxalate is a compound found in some foods, and it is also produced as a waste product by the body. It exits the body through the urine. Too much oxalate may cause kidney stones in some people.

Foods high in oxalate include:

• Beets.
• Fried potatoes, such as french fries and potato chips.
• Nuts.
• Rhubarb.
• Spinach.