Ok guys...I have my new baby, Moose, now 13 weeks. He is 37lbs. I have had him for 3 weeks, and he came to me with a gastrointestinal bug of some kind that caused a couple days worth of diarrhea. He fully recovered from that and has been, to my standards, eating and drinking well. He is my first large/giant breed puppy so despite all of the research I am not the expert in this field. He's eating about 5 cups a day right now, and has put on 4.7lbs per week since he has been with me on The vet says he's a little skinny, but he is a lazy eater, and trying to get more food in him is proving to be difficult. In one breath she says he's going to look a little skinny during this rapid growth phase and in the other she says he could put on some weight because he's a little skinny. Naturally she has me kind of worked up about it. I am struggling for ideas to put some weight on him without causing any tummy upset. Any ideas you guys have would be suuuper helpful. Just for information he is eating Purina Smartblend Large Breed Puppy and we are currently mixing in some purina canned puppy food with his dry kibble as well.