Big dogs live active lifestyles, which can cause wear and tear on their joints, so give them Purina Pro Plan Veterinary Supplements Joint Care Mobility Canine Joint Supplement for Large Dogs. These large dog supplement chews are formulated to support mobility and normal daily activities such as walking, climbing and general movements. Each glucosamine for dogs hip and joint supplement chew helps to maintain healthy cartilage and joints with a powerful blend of glucosamine for dogs, collagen, chondroitin sulfate and hyaluronic acid. Also included are omega 3 fatty acids for dogs from cod liver oil to promote a normal inflammatory response in joints from natural aging and a healthy skin for dogs. Whether you're looking for senior dog supplements for hip and joint care for large breeds, or for small breeds, talk to your veterinarian about Purina Pro Plan Veterinary Supplements Joint Care.