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.
Reduce your chances of redeveloping a calcium stone, the most common type of kidney stones. 1  Limit foods high is oxalate if you have experienced calcium oxalate stones. 2  Spinach, chocolate, beets and rhubarb all are high in oxalate. 3  Beans, green peppers, tea, and peanuts also contain oxalate.