As a puppy, your Munchkin should be devouring everything, 4 small meals round the clock. Time to do a complete wellness exam, including full blood work and fecal panel, plus abdominal / intestinal x-rays. After it’s all clear, try Orijen puppy food (dry) and ZiwiPeak (wet, as a topper). No need to mix it into a sloppy mess, just place on top or to the side. Primal freeze dried nuggets is a new topper my pups love, healthy and unprocessed. Ingredients are listed on Chewy.com. But go to the vet first!