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.
2. If kidney stones are hereditary, you should steer clear of foods that contain oxalates (the material that makes up the actual stones). Rhubarb is one food thatâs particularly high in oxalates.
1 In addition to calcium oxalate stones, another common type of kidney stones is uric acid stones. 2  Red meat, organ meats, and shellfish have high concentrations of a natural chemical compound known as purines.