Purina Pro Plan Veterinary Diets JM Joint Mobility Canine Formula contains an innovative nutritional blend that includes a high level of long-chain omega-3 fatty acids and glucosamine to help support joint health. The science behind our therapeutic diets represents a collaboration between Purina pet nutrition experts, researchers and veterinarians. Medical Indications: Diets with these nutritional modifications have been recommended for dogs with the following conditions: • Adult and senior dogs with osteoarthritis • Healthy puppies and adult dogs predisposed to joint disorders • Rheumatoid arthritis • Other inflammatory joint conditions • Heart disease