I do. I give rock pretty much anything else. I mean he doesn't get a ton of treats on a normal day anyway. i think he may be stage 2? or maybe that improved when we stopped the NSAIDS over a year ago. His kidneys have been steady (knock on wood). Other than the food change I don't think about it at this point (though now that i'm waiting for bloodwork ...)
He IS on hill's KD which, sucks, but whatever. We do some home cooked (HIllary's blend) but doesn't tolerate it well so he gets two meals per week of that. At some point I decided I wasn't going to keep adding more stuff (probiotics and stuff) to help him tolerate what is supposed to be much better food :P
Waiting for bloodwork but up until now the kidney issues have not be a big issue.