My 5 month old puppy has recently been showing not a lot of intersest in his food. We get him Merrick Puppy Chow, and he seemed to love it, but lately he's been eating about 1/3 of the recommended 2 cups for his weight. He is always exited for people food, though. So last night we gave him 1/3 of a skinned baked potato and a baby carrot, which he enjoyed with gusto. Should we feed him homemade meals, and if so, what should we feed him? Thanks!