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.
Because of this, many experts recommend eating more foods that are naturally high in calcium to prevent kidney stones. Based on actual calcium absorption rates, the best foods in this category include leafy greens, cruciferous vegetables, nuts and seeds, and raw, grass-fed milk and butter.