CRANBERRY whole fruit berries are high in oxalates (concentrated in the skins) and detrimental for PKD kidney cysts. The juice prevents bacteria from sticking to bladder walls. PKD'rs have elevated uric acid and an increased incidence of developing kidney stones. This is aggravated by eating high oxalate foods such as whole or dried cranberries. Researchers indicate cranberries could aide against obesity & heart disease through its cholesterol-reducing potential. Avoid cranberry pills made from whole cranberries.