One way to do the Shangri-la Diet is to drink sugar water. This can cause your blood sugar to go too high if you don’t drink it slowly. Dr. Edward Pooley, a UK doctor, has noted that in the UK you can buy FibreSure, which is powdered inulin, a flavorless soluble fiber. Adding it to the sugar drink should slow digestion of the sugar. It is also sold in the United States.