Royal Canin Indoor is a complete mix specially blended for indoor cats, aged one to seven years old. This food is carefully tailored to ensure that your indoor cat gets everything it needs from a healthy diet. Animal fats, fortified proteins and fish oil contribute to a balanced diet that will also help maintain a healthy bodyweight. The proteins are already hydrolysed, or partially broken down, which makes them much easier for your cat to absorb after eating. A reduced calorie count means that your cat won’t gain weight from overeating, as well.