[pepsi mcnabb]

Pepsi is 6mos,now he's starting these funny eating habits,all he wants is snacks.i started out feeding him joy,he did good with then for a while then one day he didnt want that anymore,he went that whole day without eating until last that night he made his way over to the bowl.we went to the vet for regular check up and they gave us science diet puppy,he did good the first few days now im right back where i started .can someone help me