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.
Too much vitamin D and/or calcium can lead to kidney stones. No more than 4,000 IU of vitamin D should be consumed daily and no more than 2,000 mg of calcium. Magnesium is found in nuts, beans, whole grains and green leafy vegetables magnesium levels are generally good in people who have a balanced diet.