All dogs, large and small, can experience from mobility issues at different stages of life. New Hill's Science Diet Healthy Mobility dog food has tested nutrition to enhance active mobility and to help improve joint flexibility in just 30 days! Enriched with high levels of Omega-3 fatty acids; plus Glucosamine and Chondroitin Sulfate from natural sources - Science Diet Healthy Mobility dog food helps maintain ease of movement and is formulated to support bone and joint cartilage.