I currently have been feeding my two dogs purinia pro plan sport. One is 2 and a half and the other is 19 weeks. I started feeding them pro plan because it is an all life stages food. I also wanted to try the brand that was know for its sponsorship in the field trials and so on. Well I am now starting to think about switching to kirkland brand. My younger pup has been itching a little more than I would like to see. I think it is maybe the corn because the food before that( Natural Balance Synergy) did not have corn but it was just too darn expensive! What is everyone's thoughts on Kirland brand? and I would think I don't need an 28% protein and 18% fat right now? They are both active right now with training but not crazy active yet. As the weather changes we will start doing a little more training and fun stuff outside.