Calcium oxalate crystals in the urine are the most common cause of kidney stones. Learn where they come from, how to prevent them, and how to remove them.

Oxalate is a naturally occurring molecule found in abundance in plants and humans. It’s not a required nutrient for people, and too much can lead to kidney stones. Find out all you need to know ...

Polarized light microscopy shows polarizable calcium oxalate crystals (Panel B). Cases of acute oxalate nephropathy have been reported with Averrhoa carambola (star fruit), A. bilimbi (cucumber ...

Oxalates are naturally present in many foods, but in high amounts, they can contribute to kidney stones. Learn which foods are high in oxalates and what other things to choose for a low-oxalate diet.

Once you finish eating, any extra oxalate “sticks” to calcium in the kidneys. That can produce stones. So limit canned foods, packaged meats, fast foods, and condiments in your diet.

A key for preventing growth of calcium oxalate stones is to get the right amount of calcium. A typical recommendation is to have 1,000 to 1,200 milligrams of calcium every day.

Oxalic acid, or oxalate, is a compound in many plant foods. In large quantities, it can inhibit the absorption of some nutrients. Learn more.

Kidney stones are small, solid deposits that form in the kidneys when minerals like calcium, oxalate, and uric acid accumulate and crystallize. While these formations are typically treatable, they ...

During recent years, awareness has been growing that oxalate is more than simply a metabolic waste product. Evidence is mounting that oxalate affects normal physiology, especially in the kidney.

While calcium oxalate stones are the most common type, kidney stones can be made up of other substances, in which case a low-oxalate diet may not help.

Morning Dr. John, I have had kidney stones, and will have one blasted on Thursday. In the past, 3 years they said my stones were calcium oxalate.

The relationship between soluble and insoluble oxalate in the small intestine seems to have a major effect on oxalate bioavailability, since ingestion of calcium together with oxalate-rich foods ...