Western populations appear to have developed a kind of obsession with fat.
Often people will lose weight or eating healthier, trying to eliminate almost entirely from your diet.
But if you analyze some of the healthiest diets, such as the Mediterranean, it turns out that actually are quite rich in fat.
Fats can be divided into good and bad.

The good fats are essential to our body because they have an important role in energy production and also for immune function, are also useful to improve the health of skin and hair.
The bad fats but are practically useless for our body.
We commonly say good fats, unsaturated fats: oils, fats, monounsaturated and polyunsaturated fats.
Generally, at room temperature are in liquid form, and rancid if not stored properly, because they are chemically very sensitive.
These substances are needed both as an energy source, is as indispensable to extract energy from other foods.
They are contained mainly in olive oil, dried fruits, eggs, ’sesame seed oil and sunflower oil in fatty fish like mackerel, fresh tuna, salmon and sardines.
The good fats also have the advantage of speeding up the metabolism, because of their ability to compete to produce energy.

They argue as we have said before the immune system, facilitate the transport of vitamins, they help to purify the blood and the prevention of cardiovascular disease, cancer, arthritis and other joint problems.
The bad fats are saturated fats.
They generally look solid at room temperature and are widely used in food industry.
They have no beneficial effect on our body and facilitate the increase in LDL cholesterol, causing deposits of fat in the arteries and thickening the blood, it follows a rise in blood pressure of the blood increasing the risk of heart attacks.

Are contained primarily in fatty meats, butter, as margarine, cheese and dough in the industry.
The bad fats, slow metabolism, and are the main cause of hypertension and cardiovascular disease.
Fats can also be considered under the aspect of visibility.
Visible fats are butter, margarine, oils and fat meat.
Are those invisible that wear without awareness, such as those contained in cookies, packaged in snack, dried fruit, cheese and dairy products and animal products.

These can be good or bad and that is why it is important to know which foods contain one or the other.
Many margarines on the market, contain hydrogenated oils, which is compounded to transform from liquid to solid.
Hydrogenation is a process that changes the chemical structure of good fats, giving them the classic features of the bad.
If they are consumed in small doses, are not harmful, but be careful, because many are hidden in packaged foods.
When you buy products made or margarine, be smart, which place the inscription visible, no added hydrogenated fats.

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