Glucosamine is an amino sugar that is naturally produced and found in your pet’s cartilage. It helps cartilage perform two of its main functions: lubrication and shock absorption. When bones meet at joints, healthy cartilage keeps the bones from rubbing against each other, which would cause bone damage and pain. Chondroitin is a carbohydrate naturally produced in animal cartilage. It keeps cartilage hydrated and healthy, and also helps some of the enzymes in the joints that destroy and degrade cartilage. L Carnitine is needed by the body for the metabolism of fatty acids into energy in the cells. Thus it helps the body utilize fat for energy while maintaining the lean muscle mass which helps reduce the overall body fat.