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.
Quick Answer. Treatment for kidney stones includes eating a healthy diet high in fruits and vegetables and low in animal protein, while limiting intake of oxalate-rich foods such as spinach, chocolate, beets, nuts and tea, according to WebMD. High-oxalate fruits to avoid include berries, kiwis, figs and purple grapes, adds Healthline.