Pet Food Ingredients: By-Products and Grains from Purina

Dr. Emily Cross, a Purina veterinarian gets a lot of questions about pet food ingredients, particularly by-products and grains. She explains that animal by-products and grains provide a nutritional purpose in pet food and offer numerous benefits. She explains that these ingredients are sources of protein, vitamin A, Calcium and carbohydrates that help give pets energy and promote healthy digestion. To learn more, please visit www.purina.com....
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