Protein is best known for supplying amino acids to build hair, skin, nails, muscles, tendons, ligaments, and cartilage. It also plays a main role in hormone production.
The protein in dog foods can be supplied by animal sources, plant sources or a combination of the two. High-quality animal-source proteins contain all of the essential amino acids dogs need, while a single plant-based protein might not contain adequate amounts of some essential amino acids.
Common animal-based protein sources used in pet food include chicken, lamb, fish, and beef.
Even though they are often fed plant-based diets, dogs are not herbivores. While dogs are technically considered to be omnivores—animals that eat both animal- and plant-based foods—they should be treated primarily as carnivores to better fulfill their specific nutritional requirements.
Dogs are members of the Canidae family. This family also includes the wolf, coyote, fox, and jackal. The ancestors and relatives of today's common dog hunted animals and ate them as a means of survival.
The body structure of domestic dogs is similar to that of their ancestors and relatives and is ideal for eating prey. Dogs have the enlarged carnassial teeth after which carnivores are named. Their gastrointestinal tract is simple and does not have the capacity to digest large amounts of plant products.
Animal-based proteins help dogs achieve optimal health.
As your dog reaches his mature years, remember these tips:
As Dr. Michael Hayek, an IAMS™ research nutritionist who specializes in geriatric nutrition, points out, there's still much to learn about canine geriatric nutrition. For now, realize that every animal ages at a different rate and in different ways. Monitor your dog and especially watch for changes at around 7 years of age (5 years for large breeds). If necessary, adjust his diet accordingly. With the help of your veterinarian and responsible pet food manufacturers, your mature pal can live to a comfortable, healthy old age.