Polycystic kidney disease, or PKD, can cause serious harm to your kidneys and can lead to permanent kidney failure if you do not take care of it. If you have polycystic kidney disease, you need to pay special attention to your diet in order to keep your kidneys healthy and working properly and prevent further kidney damage. Keep reading for the best polycystic kidney disease diet that will help improve your kidney function and keep your kidneys from getting worse!