Fats are one of the three macronutrients, which include proteins and carbohydrates. Macronutrients are an energy-giving caloric substance and a component of food. Types of fats are unsaturated, saturated, and trans. 2 types healthy fats include monounsaturated and polyunsaturated. Eating a large number of fats, even the healthy ones, can result in weight gain if not balanced properly. Fats are a very important dietary requirement, maintaining healthy looking skin and hair. Fats help insulating body organs against shock, regulate body temperature and promote healthy cell function. Fats can also protect your body against harmful substances, both chemical and biotic. When those types of substances reach an unsafe level in your bloodstream, your body can effectively dilute the harmful substances or keep them at a stable level. 1 gram of fat has 9 calories, while protein and carbohydrates only have 4 calories each. Fat reserves that stored in the body can be pulled during lean times for energy making the fat into glucose. Fat provides cushion-like protection for vital organs in the body. Fats help you absorb vitamin A, D, E, and K. Studies have shown that eating greater amounts of saturated fats can lead to increased heart disease and high cholesterol. Eating large amounts of trans fat can lower the “good” cholesterol and increase the “bad’ cholesterol in your body. Saturated fats are a type of fat containing a high portion of fatty acids molecules without a double bond. Examples of Saturated FatsFatty beefLambPorkChicken SkinLardCreamButterUnsaturated fats are a type of fat that contains high portions of fatty acids with at least one double bond. Unsaturated fats are much healthier than saturated. There are two types of unsaturated fats this includes monounsaturated and polyunsaturated fats. Monounsaturated fats improve cholesterol levels and also lower your risk of cardiovascular diseases. It also maintains insulin levels and blood sugar. Monounsaturated fats can be found in foods such as olive oil, peanut oil, canola oil, safflower oil, avocados, most seeds and nuts.Polyunsaturated fats help with muscle movement and blood clotting. It can be found in fatty fish(such as sardines, trout, mackerel, tuna, and herring), ground flax seeds(and oil), canola oil, walnuts, sunflower seeds, chia seeds, and hemp seeds. Trans is really just another word for fatty acids. Trans fat can be formed when you add hydrogen to vegetable oil. Using trans fat gives items more self life. Restaurants use trans fat in their fryer because trans fat oils don’t need to be changed as frequently as other oils. There are two types of trans fat that are found in food, they include artificial and natural occurring trans fat. You can find trans fat in foods like doughnuts, cakes, pie crust, biscuits, frozen pizza, cookies, crackers, and stick margarine.