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.
1 If you tend to form calcium oxalate stones, your doctor may recommend restricting foods rich in oxalates. 2  These include rhubarb, beets, okra, spinach, Swiss chard, sweet potatoes, nuts, tea, chocolate and soy products.
Some foods that are dangerous are caffeine, which disrupts the kidneyâs natural function, leading to kidney stone formation. 1  Rhubarb contains oxalate which is the object that makes up stones. 2  Artificial sweeteners.  Animal meat, which is high in uric acid. Uric acid is a cause of kidney stones.