Are you into raw diets, commercial or premium grade?
Kibble or Canned?
Who gets to decide? The dog or the owner? Do you wait for your dog to eventually eat what you have on his dog bowl or do you decide to change it you feel he doesn't like it?
I feed my dogs a mixture of commercial kibble and raw food. Sometimes I add a couple of boiled meat, vegetables or fruits with it.
I've never tried canned food because it can gets spoiled easily compared to kibble.
Lastly, although I decide what kind of dog food- nutrition wise- my dogs eat, I change it once in a while because they've learned to be picky-not eating for an entire day.