We've tried several different foods. Started with Eukanuba (before we knew better) Used Innova puppy & adult, too rich so switched to Health Wise, which is when our cocker started having skin problems, under some bad advice went to Diamond (I know I know...) and finally found Canidae. Zoe & Gus (5.75 & 10years respectively) have been on Canidae for going on 4 years now & Porter has been on it since we got him at 4mo's old, he's now 1.75. They are all doing remarkable. My vet has never heard of Canidae but can't help but admit how great they all look. I get comments all the time on how healthy & shiny they all are. They all have good appetites & the gas is minimal compared to the other foods they have tried. Plus I like it, low odor, non greasy, small kibble size.