Good wet cat food actually do not contain grains. I feed the neighborhood cat (“Harry”) Fancy Feast’s Medley. It’s not cheap (74 cents a can); there are mor expensive brands more scientifically made (so they say), but Harry won’t eat them. Medley (turkey Florentine with garden greens) contains in descending order: poultry broth, turkey, wheat gluten, liver, meat by-products, spinach, corn starch-modified, artificial and natural flavors, salt, calcium phosphate, soy protein concentrate, added color, potassium chloride, taurine, choline fluoride, vitamin E supplement, zinc sulfate, thiamine mononitrate, vitamin A supplement, ferrous sulfate, manganese sulfate, pyrodoxine hydrochloride, niacin, vitamin B-12 supplement, riboflavin supplement, calcium pantothenate, copper sulfate, menadione sodium sulfite complex, vitamin D-3 supplement, folic acid, potassium iodide, and biotin.