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.
1 If you are susceptible to calcium oxalate stones, restrict consumption of foods such as nuts, spinach, peanuts, wheat bran, tea and rhubarb. 2  But consult your doctor before making any changes to your diet. 3  Foods that contain animal protein can contribute to the formation of uric acid stones.iet for Kidney Stones. The following foods are believed to help in the treatment and prevention of kidney stones: 1  Food that is rich in fiber helps to eliminate excess calcium and oxalate from the urine. 2  You can obtain fiber from foods such as bran flakes.