Each puppy is unique, and what works for one little guy may not work for the next. As with all dog foods it’s best to mix it up a little at first, and see what your puppy enjoys. A happy, healthy and playful puppy will have shiny bright eyes and clear nose, mouth and ears. He’ll also have relatively fresh breath (not overly-doggy breath!) and a clean shiny coat, although puppy coats will sometimes shine less than their adult counterparts.