welcome to YT
-- thank you for giving this guy a forever home!!
Innova is great, as are a lot of other foods. I do add water to the dry food, it must taste better and it helps make sure they are taking in enough moisture and water.
He may just be small. Standard for a yorkie is 4-7 lbs. But my Roxy is only 3 1/4 lbs and she eats a lot.
So glad your pom loves him