At the vet two weeks ago, he was 7 months old and 1.3 lbs. Right now he eats Science Diet Lamb and Rice Small Bites (dry), but I am going to change to Canidae I think. I am just so scared of adding things because I don't want to upset his little belly and make him vomit or give him diarrhea.
Remember, I am not trying to make him "fat", just get some healthy muscle and mass on his bones!
I welcome all suggestions and advice!