Most dogs will thrive on most chows. There are a few dogs that will have trouble on one brand or another. No wonder the lady at the pet store was surprised to hear chicken and rice was a problem, because dogs normally do fine on it.
Cesar? The Anti-Cesar Millan / Ian Dunbar's been succeeding for 25 years with lure-reward dog training; how come he's been usurped by the flashy, aggressive TV host?