IAMS PERFECT PORTIONS Grain Free Optimal Metabolism Adult Cat Food Trays allow you to feed your cat wet food without the mess of leftovers in your refrigerator. IAMS Pate Chicken Recipe is the hearty cat food you and your pet love because it provides the best of both flavor and nutrition. Our wholesome cat food is made with amino acid L-carnitine for optimal metabolism. With IAMS PERFECT PORTIONS Grain Free Wet Cat Food, your cat gets a fresh meal every time.