Hill's Science Diet Adult Light Chicken Recipe Dry Cat Food, 16 lb bag. Whether your cat has a noticeable weight issue, or you would just like to keep your feline friend at a healthy weight. Hill's Science Diet Light Adult dry cat food is precise nutrition for less active adult cats requiring a low-calorie food. This cat food made with natural ingredients provides 20% fewer calories vs. Hill's Science Diet Adult, along with L-Carnitine to help support an ideal body weight in your grown cat. The quality protein and natural fibers help support your adult cat's hunger between meals, while vitamin E and omega-6 fatty acids promote shiny fur and nourish the skin. There’s more to love with the new look of Science Diet. Some of our products also have new names, new kibble shapes & new formulas.