my vet told me the same mate... she told me my dog wasnt getting enough calcium cause its knuckles were to big... i took the pup back two weeks later and she said they are better but i hadnt feed it the food she gave me to give it lol... vets dont have a clue about feeding... raw is best imo, my two pups are thriving on it, they are 6months old and are the two of the biggest from the litte and arnt lacking in anything...