SmartHeart Gold® Fit and Firm 7+ — Dogs over 7 years is formulated with senior dog's needs in mind. Using highly digestible ingredients ensures optimal absorbtion of essential nutrients. Supplemental LCarnitine facilitates the use of fat as energy in order to maintain ideal weight. Glucosamine Hydrochloride and Chondroitin Sulphate sustain joint health, plus BRAINACTIV™ feature from a combination of grapes and wild blueberries extracts that helps maintain brain function