The breeder started her puppies on RC and I continued it with Copper. It has worked out well for us. When I switched to the adult formula, I had some yo-yo try to talk me into a "healthier" brand...we tried it with very bad results...I went back to RC and eventually went to their adult formula. Copper eats it, is healthy and happy. It is a little pricey, but at Petco every 10th bag is free or is it the 11th bag? Anyway, it lasts a while because Copper is a small dog. I'm happy with RC and unless there is a problem will stick with it. Hope this helps.
