Callie had been on Blue Buffalo Wilderness Small breed for almost a year and I was getting tired of her picking out and leaving the life bits everywhere and she was seeming to be not thrilled with the food so I decided it might be time to change it up. We tried a sample of Now small breed but it made her breath really stink so I was not thrilled with that so I saw the Wellness Core now made a small breed formula and bought a bag of that. A couple years ago we tried a few samples of Wellness and Callie's favorite was the core but the pieces seemed to be to hard and kinda big so we went to something else. Well the size seems great and she loves them and is eating pretty good although she is not a big eater she is doing well on this food. I changed the food about 2 weeks ago and the last 4 days or so she has seemed so much more lively and happy even though she was happy before the food change she just seems way more so. She is playing more and getting into things more like she used to instead of seeming kinda sleepy and stuff. I love how lively she is now and how much more she wants to play much more like my Callie. Just thought with all the bad food reviews everyone could use a good one!