The saturated fats that are in butter, bacon and fatty meals are bad for your health because they contain cholesterol that can clog up your arteries and cause heart diese. Reduce the amount of bad fat you consume by choosing lean measl, avoiding fried food andlimiting the amount of butter and margarine you eat. Unsaturated fats are butter for your health. They can be found in some plant food such as avocado and oilves and also in fish .