We are told to eat oily fish – mackerel is one of the oiliest fishes and, of the 14 grams of fat per 100 grams of mackerel (much higher in fat overall than the common meats, pork and beef), 45% is monounsaturated and 27% is saturated (the rest is polyunsaturated fat, which is high in fish generally). So, 100 grams of the oily fish we are supposed to eat has more saturated fat than beef or pork.
