Sometimes food becomes a "competition" in homes with packs. In the wild...they would gobble it all. You either need to make the food inaccessible to puppy...or feed at specific times. Weight can be a serious issue and it's easier to prevent it than to take the weight off.
No, it doesn't come back "thicker". Yorkies have a single layer coat and the desire is a silk texture. It is not thick "fur".
__________________ Deb, Reese, Reggie, Frazier, Libby, Sidney, & Bodie |