He actually had a staph infection so I just recently ordered the different food. However he was on the fromm 4 star as an 8 week old pup, but I had to put him on the fromm puppy because even though most do fine with it, he lost weight. He "takes" to the Fromm very well and loves it. I don't think u will have any problems. I have not used Fromm treats, Chaos is a weirdo and doesn't like treats. I know right....I'll never understand him :Just make sure you do a slow transition so he doesn't get diarehha, they have sensitive tummies. Good luck!!!