Will Falconer, DVM Moderator
Good catch, Lisa. And your vet (the 2nd one) caught the connection: sometimes raw fed dogs with have an increase in a kidney value called BUN. It's simply because they are finally on high quality, fully usable protein, and the N stands for nitrogen, a metabolite of digesting meat.
So yes, kibble fed animals is likely a very sick baseline for most blood work. We have to read results with this in mind.