Feeding your puppy IAMS Proactive Health Dry Dog Food is easy. First, check the feeding guide on the package based on your puppy's age, weight, and activity level. Make sure to provide fresh water at all times. Store the food in a cool, dry place and keep the bag tightly closed after each use. If you're transitioning your puppy from another food, gradually mix increasing amounts of IAMS food with the old food over a week to avoid digestive upset. And remember, this food is specially formulated for puppies, so once your dog reaches adulthood, you may need to switch to an appropriate adult dog food.