About UNHCR. The Office of the United Nations High Commissioner for Refugees was established on December 14, 1950 by the United Nations General Assembly. The agency is mandated to lead and co-ordinate international action to protect refugees and resolve refugee problems worldwide.
Another common type of kidney stone is a uric acid stone. Red meat and shellfish have high concentrations of a natural chemical compound known as a purine. High purine intake leads to a higher production of uric acid which then accumulates as crystals in the joints, or as stones in the kidneys.
Kidney stones formed of Calcium oxalate are usually the result of eating high-oxalate foods, such as chocolate, berries (including cranberries), dark leafy greens (such as spinach) and wheat or bran foods. If you consume these foods on a regular basis, there is a chance that you have an oxalate stone.