Fat is one of the three macronutrients, the others being carbohydrates and protein. Nowadays it seems as though carbs are in the spotlight and that they are the current enemy, but just before that it used to be fats. Low-fat diets were all the craze, doctors, health gurus, and trainers used to recommend low-fat diets in order to increase health and to lose weight. But now things have fairly changed, there are new diets that have emerged like Keto and Paleo diets that rely on consuming moderated amounts of fats. Here are some important facts you should know about fats:

Fat helps you to absorb important nutrients, like A, D, E, and K, the so-called fat-soluble vitamins.

There are several types of fat, including saturated, monounsaturated, and polyunsaturated. The body can produce saturated fats on its own, so there are no dietary requirements for the consumption of them.

Fat in the diet provides energy for your body to function. Particularly, your brain needs fat to function properly, and it needs a special type of fat, polyunsaturated, more specifically, Omega-3. These fats help to support the cell structures in the brain.

Saturated fats tend to be solid when at room temperature and can be found in animal, dairy, and packaged food products in addition to coconut and palm kernel oils. A diet high in saturated fats could be a risk factor for heart disease.

Unsaturated fats are liquid at room temperature. Polyunsaturated fats include the essential (meaning they must be consumed in the diet) Omega-3 fatty acids found in many types of cold-water fish and Omega-6 fatty acids, which are found in soybean, corn, and safflower oils (and foods made with those oils). Monounsaturated fats are found in olive, peanut, and canola oils.

Trans fat is made when an unsaturated fat, which is normally liquid at room temperature, is hydrogenated (adding hydrogens) so that it turns into a solid. This manufacturing process increases the shelf life of a food product, which is why many packaged foods can be high in trans fats. However, because it changes the chemical structure of fat, trans fats have been linked to heart disease and elevated levels of low-density lipoprotein (LDL) cholesterol.

The myth of the "fat-burning zone" is not really a myth—lipolysis, the breaking down of fats for energy, requires oxygen, which is readily available during lower-intensity physical activities. Muscles primarily use fat as the source of ATP during low-intensity activity.

Stress can increase body fat. During periods of stress, the body releases more triglycerides into the bloodstream to be used for energy for the working muscles. However, if there is no significant physical activity to use that energy, those triglycerides will be returned to the adipose tissue for storage until they are needed.

A healthy balanced diet should consist of 15-30% of fats. Fats play an important role in our bodies. Fat gives your body energy, protects your organs, supports cell growth, keeps cholesterol and blood pressure under control.