X-SMALL BREED DOG FOOD: Royal Canin X-Small Aging 12+ Dry Dog Food is precise nutrition specifically made for toy and miniature breed senior dogs over 12 years old that weigh up to 8 lb AGING SUPPORT: EPA, DHA, and antioxidants for dogs promote healthy aging HEART HEALTH: Key senior dog nutrition supports heart health FOR PICKY EATERS: Palatable dog food satisfies the fussy appetites of small dogs with enhanced palatability SPECIALIZED KIBBLE: Senior x-small breed dry dog food has rehydratable kibble designed for older dogs’ miniature teeth and senior jaws