My little black lab Holly is 4 1/2 months old. I have been taking her to obedience class and she was wired up and hyper last night. (She was locked up most of the day, unfortunately). The training scolded me about her dog food, saying that she was on too high of a protein dog food and that labs don't need puppy food. The food I am using was recommended by my vet, who has labs of her own. Has anyone noticed a large difference with high protein (28% it says on the bad) vs. lower protein foods. I am in the US so most of the brands mentioned in other posts are foreign to me (literally). She is a pretty excitable pup, but starting to calm down just a bit. She is still a baby though.