Oxalate is a naturally occurring compound found in many plants, including leafy greens, nuts, and fruits. It can bind with minerals like calcium, forming insoluble compounds that may contribute to the formation of kidney stones in some individuals. Foods high in oxalate include spinach, rhubarb, and beets. In the human body, oxalate is produced during the metabolism of certain foods. While most people can handle normal dietary levels without issues, those with specific health conditions, such as kidney stones or hyperoxaluria, may need to limit their intake. Understanding oxalate can help manage dietary choices for better health.