Science Diet Adult Perfect Weight Salmon & Veggie Medley cat food is breakthrough weight management nutrition with clinically proven technology. It is safe & effective for weight loss with visible results within 10 weeks. This food will help with healthy weight management, lean muscle support, and long lasting weight support. A great tasting nutrition for a long, happy life. With soft purrs and even softer nuzzles, you and your cat have a love that is all your own.