Originally posted by Christiansmommy

a 1/4 of a centrum and 1 vit. C.
You mean vitamin C? Dogs don't need extra vitamin C. Their bodies produce it. The only animals that don't produce their own vitamin C are humans, some apes, and guinea pigs. Too much vitamin C could potentially harm a dog.

The site that said puppy food should be given until 18 months was a GSD breeder site. So I guess they are wrong? I just figured since they are reputable breeders ( atleast it sounds like they are) that they would know alot about diet..Maybe it is because their dogs are used for herding and other high-energy uses and need the extra calories?