Yup, you can have it if you really want it. Yes, it will make you thirsty. Best thing to do is plan for it - if you know you are going to have it on Sunday, be extra careful with fluid the day before, and then if you need a bit extra water to wash it down, you can have it. A small serving of most things, no matter how un-renal-friendly, can be worked into your diet.
Just out of curiosity, I googled for "Low Salt Ham," and found one brand, Silver Star Meats, whose lower-sodium ham is claimed to have about 800 mg sodium per 3 ounce serving. That's bad enough, but at least it's lower than those other hams that BigSky posted about.
the smell gives me a crave on!
Green Eggs with Ham
I've heard that Kosher Ham is actually salt free.
Thats awesome. If I can find a ham that my rabbi will call kosher, I can eat as much as I want.