The first & only food designed specifically for giant breed dogs aged between 8 & 24 months. It contains chondroitine & glucosamine which helps with cartridge hydration & stimulates cartridge turnover which in turn keeps healthier joints. The addition of L-carnitine aids an increase in muscle mass whilst helping your dog maintain a healthy weight. Royal Canin Giant Junior 31 contains prebiotics & psyllium which promotes a balanced intestinal flora & the specially designed kibble slows down food intake aids with chewing & also helps oral hygiene. Weight is 15kg