Responding to a super old thread, but thought I would respond anyway.
Originally Posted by Myka
Why is it all based on ground beef?
The argument is that (1) beef has less phosphorous than chicken and (2) beef has more calories than chicken, and for most dogs in this condition, it's very difficult to get them to take in enough calories.
I myself am new to the world of renal failure (my 16-yr-old was DX'ed just yesterday) but this was an interesting tidbit I had found.