Hill's Science Plan Adult Medium Tuna and Rice is specifically designed to meet the nutritional needs of adult dogs. Made with high-quality, easily digestible ingredients, it supports lean muscle mass, promotes healthy digestion, and enhances skin and coat health with added Omega-6s and Vitamin E. Ideal for adult dogs between the ages of 1 and 6, this formula is not suitable for puppies, pregnant or nursing dogs, or mature adults.