Defiantly true because of your increased calcium and because when we tend to eat less we drink less which is a no no with this procedure. Believe me I make myself drink lots of liquid even if its a diet drink. I couldn't drink anythink with carb. for about 6 months which I do good now just burp a lot lol. For your kidneys try drinking a light beer great diarretic if your not on anything. I actually loss weight drinking them. Go figure on that one. I hope you get feeling better. I'm up early this morning can't sleep so was checking on you.