So you’ll need to make sure they’re eating complete and balanced food, that is formulated specifically for puppies and that provides all the necessary nutrients in the proper quantities and ratios to each other. With all that growth and development, your puppy has some specific nutritional needs. Here’s a look at what makes up a high-quality puppy diet: Water, Calories, Protein, Fats, Carbohydrates, Minerals, DHA, Vitamins. When preparing your puppy's food, always ensure you follow the recommended feeding guide on the package (unless otherwise recommended by your vet), as amounts can vary from breed to breed and also change with age. Protein is the building block of muscle development and tissue repair. Fats are actually a concentrated form of energy – and a source of essential fatty acids that will help your puppy absorb certain vitamins and maintain a healthy skin and coat. Elements like calcium, magnesium, potassium and iron are necessary to help your puppy’s body perform certain important functions – like growing strong bones and teeth, maintaining normal muscle and nerve function and producing hormones.