Cats are obligate carnivores, so most human foods add nothing to their diet, and a few can do real harm. These guides go food by food: whether a cat can eat it, how much is too much, what the risk actually is and what to do if your cat has already eaten some. Some foods are dangerous, such as chocolate and grapes and raisins, some are fine in small amounts, and many depend on how they are prepared.
Every answer is written from published veterinary sources, named on the page. For a quick overview of a whole group of foods, use the food guides, starting with the list of foods toxic to cats. If your cat has eaten something dangerous, call your vet or a pet poison helpline right away instead of reading on. The category also covers pet food recalls, such as the Northwest Naturals recall.