Dogs are only puppies for a short time, but that 1-2 years is very important for their development into adult dogs. It is the first time you get to bond with your dog, but it is also when they are growing and learning fast! Puppy food is simple but effective for a growing pup. Puppy food is more calorically dense than adult food, puppies need more calories as they grow. Puppy kibble pieces are generally smaller as well to allow their smaller mouths to eat more effectively. As always, protein is the most important ingredient for a growing puppy, to always keep an eye on that protein %.