Hills Canine Metabolic Plus Mobility ChickenHills Canine Metabolic Plus Mobility Hill's Prescription Diet Metabolic + Mobility Canine is a nutrition clinically proven to improve mobility in as little as 21 days AND reduce body weight by 13% in 60 days. Key Benefits Naturally works with your dog's unique energy use, activating the body's natural ability to burn excess body fat. This helps turn overweight dogs from fat storers to fat burners, helping them to lose weight and prevent weight regain.