2024 Author: Jasmine Walkman | [email protected]. Last modified: 2023-12-16 08:29
Fats are the largest source of body heat, they also take part in the redox processes in the body, in the work of the endocrine glands, protect against cooling and bruising of the body.
Fats are of animal and vegetable origin, 1 gram of fat gives about 9. 3 calories. The daily need for fat in temperate climates is 60-80 grams, and in cold 120-130 grams. The higher the melting point of fat, the worse the absorption of fat (for example, lard and lard).
Vegetable fats, unlike animal fats, are richer in unsaturated fatty acids (essential). They give fat a lot of biological activity similar to vitamins and that is why some call them vitamin F.
It has been found that a deficiency of essential fatty acids more easily develops atherosclerosis, increases the susceptibility to allergic diseases. With age, the need for them increases. However, vegetable fats do not contain vitamins A, D and cholesterol.
That is why the most correct diet is mixed, as at an early age fats are more of animal origin, such as butter, and in old age - of vegetable origin. Frying fats impairs their absorption by the body.
Fats contain so-called lipoids. Of particular importance are phospholipoids, which are part of all cells and especially in the cells of the nervous system.
Lecithin is a lipoid that prevents the development of atherosclerosis and fatty degeneration of liver cells. Soy, cereals, egg yolk and others are rich in lecithin. Cholesterol is another important lipoid that is part of all cells.
About 80% of it is formed in the body, and about 20% is imported into food. When its metabolism is disturbed, it is deposited in the walls of blood vessels, from which atherosclerosis develops.
Particularly rich in cholesterol are animal offal (brain, girls, nuts, etc.), egg yolk, animal fat, cocoa and others.
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