When Diamond transitioned to “big dog food” after a year on puppy food, I discovered that he had become quite picky. He would sniff the samples I got from pet food stores and walk away. So, I devised an experiment…I chose five different premium dog kibbles, placed them about a foot apart on the floor, and waited to see what Diamond would do. He went straight to one, sniffed it, and proceeded to eat it with gusto! The winner: Natural Balance’s Sweet Potato and Fish.