- Because each breed has different needs, it’s important to ensure that your dog’s diet contains nutrients that will support optimal health. Suitable for dogs over 10 months old, ROYAL CANIN® Cavalier King Charles Spaniel Adult is specially formulated with all the nutritional needs of your adult dog in mind. ROYAL CANIN® Cavalier King Charles Adult contains nutrients that help support healthy cardiac function – such as an adapted content of minerals, EPA & DHA, taurine, L-Carnitine and antioxidants. ROYAL CANIN® Cavalier King Charles Spaniel Adult is specifically designed with precise levels of nutrients to help your dog maintain an optimum weight. Beneath the long, soft and silky coat lies a skin which is sensitive, meaning it needs to be sufficiently cared for. That’s why ROYAL CANIN® Cavalier King Charles Spaniel Adult provides nutrients that are tailored to help support a healthy skin and coat. ROYAL CANIN® Cavalier King Charles Spaniel Adult contains kibble that is exclusively designed to make it easier for your Cavalier King Charles Spaniel to pick up their food and chew it effectively.