No. Fat trimmings cooked or uncooked are bad for your cat and are often associated with an upset stomach, vomiting, and diarrhea. Fat trimmings are not to be used as treats for your cat every time you have some leftovers on your plate after dinner, as your cat can develop pancreatitis. A high-fat regular diet is one of the main risk factors for developing pancreatitis in cats. The more fat your cat eats the harder her pancreas works, the amount of fat in her blood increases, leading to obesity and eventually developing acute or chronic pancreatitis.