What is good for many or even most dogs may not be the best for an individual. Older dogs with compromised kidneys have a hard time excreting the waste products from excess protein digestion. But two premises are inherent in that statement: First, that the dog has reduced renal function, and second, that the dog's current diet has excess protein.

It's hard to know without feed and stool analyses how much protein is left over. A couple of simple and inexpensive tests can give your veterinarian and you good information about renal status. If the kidneys can concentrate the urine, and the creatinine is within normal limits, the renal function is adequate, no matter what the age. Adequate renal function means the dog can handle a higher level of protein.

The best choice for your dog is a food that maintains its weight and makes it look and feel healthy. As long as the dog's kidneys are fine, the extra protein is no problem, and it may be necessary for the dog's overall maintenance.

Talk to your veterinarian about the frequency of routine screening tests, and ask for suggestions on a higher-energy diet. This should help you keep your pal young in body and in spirit for a long time.

Author(s): Wilcox, Bonnie, D.V.M.
Publication: Dog Fancy
Issue Date: October 1995