[matese]

Ok I found the puppy food many members suggest is a good quality puppy food, it is Royal Canin, I believe there is a Royal Canin Yorkshire puppy food, if not any Royal Canin puppy food is ok. I do suggest stop feeding him the Blue Buffalo as that company has had many law suits filed against them and many recalls on their dog foods.
When ever you change a dogs food it must be a slow and gradual transition to avoid the dog / puppy getting diarrhea which can lead into dehydration. Over a period of 7 days add small amounts of new food mixed in with the food the pup is eating increasing the amount of new food everyday until pup is eating just new food. Members suggest free feeding puppies, meaning always have food in their bowl so they can graze all day. There is no such thing as an over weight puppy. Yorkies are high energy puppies and will burn off calories fast. With wet dog food this cannot be done, I would feed the puppy 3 times a day instead of twice a day due to his weight as of June 7th, he is a tiny lil guy and needs plenty of good quality food.