The Hills Bioactive Recipe Adult 6+ Large Breed Thrive + Vigor dog food is a synergistic blend of key ingredients to help your mature dog maintain their vigor as their biology changes with age and keep them healthy and playful for life. This recipe features chicken to provide rich protein, beet pulp for gut health and antioxidant rich foods like green peas and cranberries for immune health. Contains no corn, wheat, soy, artificially preservatives, colors or flavors. Especially formulated for large breed dogs 6+ years of age.