Hill's Science Diet Adult Light Dry Dog Food, Chicken Meal & BarleyProduct Information Just because your adult dog has a big appetite, it doesn't mean his or her pet food should be big in calories. Hill's Science Diet Light Adult dry dog food is precise nutrition for less active adult dogs requiring a low calorie food to help maintain a healthy weight & lifestyle. This premium dog food made with natural ingredients provides L carnitine to promote healthy heart function in your canine friend. vitamin E and omega 6s