If you go back to the feeding threads there are several in there that I started. One was about Solid Gold Barking at the Moon, which I feed my almost 8 mo. old. Gmacleod answered quite a few threads on that, which is informative. There is a controversy over whether or not too much protein can harm a puppy. Some say yes, some say no. It is whether or not you want to take that chance of it doing anything to your pet. Because of trying to find a grain free food for both my older and younger one without having to buy two different kinds, I went ahead with Barking at the Moon. It is high protein, but so far it seems to be fine. Because I have to order my food where I live, I didn't want the hassel of storing and ordering two different foods. I know if anything happens it probably will show up later down the road. But, he grew extremely fast on what I was feeding them which was a lower protein food. I have not noticed him growing any faster or gaining any more weight with BATM. It is just a personal choice, but you can go back and read some different posts and get more information from gmacleod. I guess I just feel that if you feed a raw diet, it is extremely high in protein too, so as long as you do not overfeed with higher protein food, I personally don't see much difference. Good luck on whatever you do decide.