I just got an 8 week old boxer pup. This is my second boxer and I am very excited. Last time I had a small female. This time I bought a male and he is the largest one in the litter. I really want a large muscular male. So my question is what kind of feeding habits can I use to help my dog reach his full potential? My local pet store manager recomended feeding him Nutro Natural Choice high energy formula because it has all the vitamins a puppy needs plus extra fat and a lot of protien. I have also talked to a custom food place here in town and they recomended canned pumpkin in with thier lamb and rice food. Any help you can give me would be apprieciated. Thanks Ken