I have an 8 year old and a 14 week old. The 8 yr old is picky and we just went to The Farmer's Dog out of desperation. He went completely off his food when his brother died in Oct. First food he has EVER literally loved and it's healthy for him, and all measured out. It is pricey though. The 14 week old is on Purina Pro Plan 30/20 (which our breeder also recommended). He won't eat it without a bit of chicken broth to mush it up and a shake of parmesan cheese. He's not a huge eater either but he's still got the puppy weight so I am not too worried about it. Looks like you got some good advice here but I did want to just chime in with what is working for us. Good luck.