Pro Plan cat food formulas harness the power of science to provide your cat with optimal nutrition for a life of health and vitality. This premium dry cat food contains all the essential nutrition your adult cat needs, including vitamins A, C and E for a strong immune system, omega 3 and 6 fatty acids for healthy skin and a shiny coat plus a natural prebiotic to aid digestion. Kidney disease is common in cats as they age, so Pro Plan Adult Salmon is formulated with the unique Optirenal blend, designed to help protect the kidneys from oxidative damage and preserve optimal function for a longer, healthier life.