Purina One True Instinct Dry Cat Food Ocean Whitefish, Grain-Free, Yield to your cat's cravings for natural nutrition with Purina ONE True Instinct Grain Free With Ocean Whitefish natural adult dry cat food with added vitamins, minerals and nutrients. Crafted by a veterinarian-recommended brand, this premium grain free cat food delivers truly healthy nutrition. 100 percent nutrition and 0 percent fillers means no poultry by-product meal and no artificial colors, flavors or preservatives, so every ingredient has a purpose. The high protein dry cat food starts with real ocean whitefish as the #1 ingredient and delivers 35 percent protein to help support her strong muscles, including her healthy heart.