Oats & oatmeal — Food safety facts
Safe to share · Cats · full breakdown on the linked food page
Safe, plain cooked oatmeal in small amounts is fine. Great for sensitive stomachs (no sugar or milk).
Short answer
Yes, cats can eat oatmeal in small amounts. Plain cooked oatmeal is safe for cats. Do not add sugar, milk, or flavorings. Plain oatmeal can be good for cats with sensitive stomachs. If your cat eats a lot or shows vomiting or diarrhea, contact your veterinarian.