HILL'S SCIENCE PLAN Light Medium Mature Adult dog food provides balanced nutrition for less active mature adult dogs requiring a low calorie food to help maintain a healthy weight. 15% lower calories vs. HILL'S SCIENCE PLAN Mature Adult. Satiety control. Keeps your dog satisfied between meals with added Omega-6s & Vitamin E for beautiful skin & coat. Recommended for: Mature Adult dogs 7+ years of ageNot recommended for: Puppies, or adult dogs (< 7 years of age). Pregnant or nursing dogs.