Case-
I have a Great Dane. I agree that it depends on the size of the dog. The most important thing is to NOT feed a food that is only approved for Adult Maintenance by AAFCO to your puppy. I would feed an “All Life Stages” or puppy food (they truly are the same thing) until at least 1 year. If you have a large breed, then 2 years. If you have a giant breed (like a Dane), then 3 years. I also agree with aquariangt about vets. My vet and I butt heads over what I feed my dog. I choose to feed The Honest Kitchen and raw. My vet says that feeding Purina or Iams is just as good and all I’m doing is wasting my money on expensive dog food. I told him that we’ll have to agree to disagree and we don’t speak on the subject anymore.
I hope this is helpful. Just my two cents 🙂
