Puppies grow quickly and have special nutritional needs to keep their bodies strong. The most noticeable time is known as the rapid growth stage, which occurs between 2 and 6 months of age. From about 3 to 6 months, most pups will lose their puppy teeth (you might find a tooth near his dish or on the floor; this is normal).
During this phase, his mouth and gums may be very sensitive, which could cause him to be a bit picky when it comes to eating. There's nothing you can do except to wait it out, even if his appetite is low for a couple of days.
Helpful Hints
Don't switch to a new formula to stimulate your puppy's appetite. Changing food at this time can cause additional stress and intestinal upset. The tips below could help your puppy make the change:
Chicken, a complete protein source, is a key ingredient in IAMS™ dog foods, including IAMS™ ProActive Health™ Adult MiniChunks. As an animal-based protein, chicken can help maintain your dog’s muscle structure and naturally provides all the amino acids essential to carnivorous animals such as dogs. Plus, chicken adds great flavor.
Learn more about chicken’s role in your dog’s complete, well-balanced diet.
Common chicken ingredients in dog food include chicken, chicken meal, chicken byproduct meal and chicken fat:
Another common chicken-based ingredient is natural chicken flavor, also called chicken digest. Natural chicken flavor adds palatability and nutrients. It is high-quality protein and fat material that has been reduced to amino and fatty acids to improve flavor through an enzymatic process.
Internal organs are rich sources of protein, fats and minerals, such as iron, that are essential to dog health and add to the palatability of the pet food. Including some ground bone provides a good source of minerals, such as calcium. Some pet-food manufacturers formulate their products without such ingredients to appeal to dog owners, rather than to help dogs achieve optimal health. However, the nutritional needs of dogs are not the same as the nutritional needs of humans.
Dried chicken-protein sources in our chicken-based dog foods undergo an extra refining process. Refined chicken meal and chicken byproduct meal are excellent and complete sources of protein because they naturally contain each of the amino acids that are essential to dogs.

