Answer:
Generally speaking, puppy food is higher in protein and enriched with vitamins, minerals, and fats essential for growth--that is, when compared to dog food made by the same manufacturer. Still, ingredients across brands can vary greatly. Commercial puppy food must meet AAFCO (Association of American Feed Control Officials) nutrient standards for growth, and many companies go above and beyond those standards, testing their products to make sure they support puppies' development.