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.
In addition to spinach, grits, liver, nuts, wheat bran and rhubarb, several other foods raise levels of oxalate in the blood, including beets, Swiss chard, okra, sweet potatoes, beans, black tea and chocolate. If you frequently develop kidney stones or gout, limit your consumption of these foods.