[Dukie Baby]

Quick question......I know that adult Yorkie's do not shed, but do puppies shed their puppy coat? Cooper had a loose tuft of fur last night, and he just went to the vet last week so I know he's healthy. He doesn't have any bald spots, just the tuft of fur that came out when I brushed him. I'm wondering if this is normal or if he might be having an allergic reaction to his food.

Thanks in advance for your help.