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.
The most common types of kidney stones are calcium and oxalate. Each type may require a different eating plan. There are certain foods you can have, and other foods you should avoid, to reduce the chance that you will get kidney stones again. If you had kidney stones before, you are more likely to get them again.