Research has shown that protein does not cause kidney problems in dogs, but there was old faulty research that said protein was a problem. The old research was done on rats or mice, not dogs, but vets don’t seem to be able to grasp the new research, which is still many years old.
In reality, older dogs lose some of the ability to get protein out of their food but their need for protein is not reduced AT ALL. Because of this, senior dogs may actually need as much as 50% more quality protein just to get the same amount of protein from their diet. BUT quality is the key phrase, real meat is healthier than more kibble
