In addition to being a good source of energy, unsaturated fats and oils have additional positive effects on health, one of which is protection against cardiovascular disease.
An important ingredient of a healthy diet, with protein and carbohydrates, and fats as the main source of energy. Normally be divided into two types, depending on their condition at room temperature, and the fats and oils in a solid in a liquid form. Both groups can be divided into saturated and unsaturated compounds.
Very often we hear advice on the importance of reducing intake of saturated fat, but it is not advisable to completely remove from your diet as they are, among other things, needed to create vitamin D, and some anti-stress hormones in the body. The required daily amount of fat recommended by the majority to enter unsaturated fats and oils because, besides being a good source of energy, have more positive effects on health (eg protection from cardiovascular disease).
A good example are the omega-3 fatty acids, which belong to a group of essential, polyunsaturated fatty acids.The term "essential" means that the body can not produce, but must be taken in with food. Natural source of omega-3 fatty acids is fish, and among the richest salmon, tuna, herring and trout. Due to the great importance of omega-3 fatty acids in health, are recommended at least two fish meals per week. But some people do not like or can not tolerate fish, and often need more time to prepare such meals or foods are not available.
The meaning and value of omega-3 fatty acids were initially noticed by observing the population of Greenland.While eating Eskimos and other local residents is not optimal (uniform and contains lots of fat), blood flow to their advanced age remains healthy and able to exercise tolerance. This is because a large part of their diet consists of fish from cold waters, particularly rich in omega-3 fatty acids, which favorably affect the health of the heart and blood vessels.
Essential fatty acids, in which the omega-3 include the omega-6 fatty acid, an important component of the diet.Scientists are constantly discovering new benefits of regular supply of omega-3 fatty acids, either through food or supplements. It is known that essential fatty acids involved in energy production in the body, the transfer of oxygen to the cells, hemoglobin production, transmission of nerve impulses and regulate the permeability of cell membranes. Are needed for the production of prostaglandins, which, among other things, regulate pain and inflammation. It is therefore believed that omega-3 fatty acids, in addition to a favorable impact on the health of the heart and blood vessels and lowering blood cholesterol, can improve concentration, memory and mood, reduce inflammation associated with arthritis, to maintain hormonal balance, strengthen the immune system, alleviate allergic dermatitis and support healthy hair, skin and nails.
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