The list of human food cats can eat safely is pretty simple: it includes lean animal proteins like chicken, turkey, beef and fish, as well as few fruits and vegetables like pumpkin, blueberries, watermelon and bananas. All of it should be unseasoned, served in small bites and not exceed 10% of your cat's caloric intake per day. Some foods are toxic and shouldn't ever be offered to a cat: onions, garlic, grapes, alcohol and chocolate included.
Why such careful approach? Cats are obligate carnivores and require certain nutrients that can be found only in animal tissues, like taurine and preformed vitamin A, while their metabolism doesn't process plants and sugar well. Moreover, they can't even sense the taste of sweet things: according to a study published by Xia Li et al. in 2005, the cat sweet taste receptor contains mutations that break its function.
Here we present each of the foods on the human food cats can eat list with a brief description.