Roly-poly pups may look cute, but this is not always the best for healthy growth. You want your pup lean and strong. Extra weight can put extra pressure on her growing joints. We’re not advising that she be ribby, just sleek and streamlined—getting all the nutrition she needs but not extra calories.
Looking down on your pup, you should see a slight waist behind the ribs, and when you look from the side, she should have some tuck-up. Each of these things varies from breed to breed, so talk to people knowledgeable in your breed and to your veterinarian.