NutriSource 30/21 Puppy Starter + Plus is a specially formulated food designed to support puppies during their early growth stages. The numbers “30/21” refer to the precise balance of 30% protein and 21% fat, providing higher energy and optimal nutrition. With real meat, probiotics, and balanced omegas, NutriSource consistently ranks above many other brands in quality, digestibility, and safety. All of our puppies are raised on this food, and we recommend continuing it for at least the first month at home to ease the transition. After that, you’re welcome to switch diets if you’d like, knowing your puppy will adjust more smoothly.