Hill?s Science Diet Adult Light dry dog food is recommended for adult dogs aged 1-6 years old who are less active, neutered or otherwise prone to weight gain. Contains 18% fewer calories when compared to Hill?s Science Diet Adult Advanced Fitness dry dog food to help avoid excess weight gain and contribute to a healthier lifestyle. Made with natural, high quality, easy-to-digest ingredients plus vitamins, minerals and amino acids. Made with NO artificial colors, flavors or preservatives for a flavorful, nutritious meal. This premium dry dog food provides a clinically proven blend of antioxidants to support a healthy immune system. Hill?s Science Diet is US Vets’ No. 1 Recommended (Based on a survey conducted amongst veterinarians in the US in 2017).