Cats have special dietary needs
Cats are obligate carnivores, meaning their bodies are built to derive nutrition primarily from animal protein and they require certain nutrients, such as taurine, that they can only get from animal sources. This makes a complete and balanced cat food especially important, because deficiencies can cause serious health problems. Human foods should only ever be occasional treats and never the basis of a cat's diet. This article is general information only and does not replace veterinary advice.
Foods generally safe in moderation
A few plain foods are commonly considered acceptable as occasional treats for most cats: small amounts of plain cooked meat or fish without bones, skin, or seasoning. Because cats are carnivores, they are far less interested in — and less able to digest — plant foods than dogs are, so vegetables and fruit are not a natural fit for them. Any treat should be tiny, plain, and infrequent, and it should never displace their balanced food.
Contrary to the popular image, cow's milk is not a good treat for most cats; many are lactose intolerant and it can cause digestive upset.
Foods to always avoid
Several foods are toxic or dangerous to cats and must be kept away from them entirely. These commonly include onions, garlic, and chives, chocolate, grapes and raisins, alcohol, caffeine, xylitol, and raw dough. Because cats are small, even modest amounts can be harmful. Cats are also curious and may investigate food left out, so store hazardous items securely and be careful with seasoned or fatty foods that can upset their stomach.
If you suspect your cat has eaten something toxic, contact your veterinarian or an animal poison control service immediately rather than waiting for symptoms.
Consult your veterinarian
Every cat is different, and factors like age, weight, and health conditions affect what is appropriate. Before offering any human food or changing your cat's diet, consult your veterinarian for guidance tailored to your pet. A high-quality, complete-and-balanced cat food remains the cornerstone of feline nutrition; treats, where given at all, should be minimal and chosen with care.