Minerals are one of six nutrient groups in pet food that dogs and cats need for optimal health. Learn more about the minerals that contribute to healthy body function.

Purina was the first to use prebiotics in pet food and is a leader in the field. What are the benefits of prebiotics to pets?

Protein is a key nutrient for dogs and cats and a source of amino acids, the 'building blocks' used to build new proteins in the body. Irrespective of the pet’s age, protein plays many important roles in the body.

Food allergies are not common in dogs and cats, but pet owners often believe that a pet’s skin or intestinal symptoms are allergic reactions to specific food ingredients.

Salt is an important component in pet foods and is involved in a number of critical functions in the body. With recommendations to restrict salt intake in people, does the same apply to pets?

Fat is an important nutrient for pets. What is its function, and are there differences in the fat requirements of pets and people?

Soy can provide nutritional advantages for pets, but pet owners often question the quality and health impacts of this ingredient.

The small amounts of sugar in pet foods have important functions, but pet owners often view sugar as an ingredient that only adds calories and causes obesity or diabetes.

Protein is an essential nutrient that can be provided by both plant and animal sources. Are there differences between plant and animal proteins and what is considered a good quality protein?

Learn why small dogs can benefit from a food specifically formulated for them.

Grains provide valuable nutrients, but pet owners may believe that grains are “fillers” or that they may be a source of food allergies.

Gluten-free diets are increasingly popular in human nutrition and this in turn can influence pet food decisions. What exactly is gluten and why is it found in pet food?