Concept for Life Medium Senior is tailored, premium nutrition based on the individual dietary requirements of medium-sized, senior breeds of dog. This complete dry dog food has many benefits, including: Promotes vitality: The special composition of nutrients, vitamins and essential fatty acids can help to counteract the first signs of ageing and keep your senior dog more lively and active. The antioxidants in aronia berries, green tea and hops all help to protect cells against ageing and let your dog grow old gracefully. Ideal weight maintenance: The adjusted fat content can help your dog to maintain its ideal weight. L-carnitine can also help activate the bodys own fat reserves. Joint cartilage protection: The formula contains a special mix of nutrients including the cartilage components glucosamine and chondroitin sulphate. Vitamin C can also support the formation of collagen which is important for the cartilage function in older dogs of medium size breeds. Supports kidney function: