Bigthree-
Glad you found a food that works. Now I am going to attempt to answer your question about large breed food being different from all life stages food. There is no official AAFCO guidelines for large breed pups. Only for 1) adult/maintenance and 2) all life stages/puppy. So, when you see a food marketed for large breed, it is whatever the manufacturer of the food decides is best for large breeds. They tend to be a little lower in both protein and fat usually. You just have to read the guaranteed analysis to see if it fits your needs. Good luck with the Orijen. A lot of people think it is the cream of the crop!
