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.
1 If you tend to form calcium oxalate stones, your doctor may recommend restricting foods rich in oxalates. 2  These include rhubarb, beets, okra, spinach, Swiss chard, sweet potatoes, nuts, tea, chocolate and soy products.
1 Too much sodium in your diet increases the amount of calcium your kidneys must filter and significantly increases your risk of kidney stones. 2  Being obese. 3  High body mass index (BMI), large waist size and weight gain have been linked to an increased risk of kidney stones. 4  Digestive diseases and surgery.