All that is tasty isn't always useful, and often can do harm to an organism. People eat fried food almost every day. Cutlets, fried potato, fried eggs – very popular dishes. However there is a set of the causes of harm of heat treatment of this type of food.
When frying the products partially or completely are located in oil. This food contains huge amount of fats, has high caloric content. At the use fried the organism is saturated with fats and at some point they reach such quantity that can't be digested. Respectively, it can become the cause of obesity and also develop a heart trouble and vessels.
When boiling oil, especially for a long time, its chemical composition changes, in it the huge amount of hazardous substances is formed. Part of them evaporates and comes to airways in the course of cooking. But not evaporated part is late in the oil, they have harmful impact on a mucous membrane of a stomach and intestines, can lead to digestion process violations. Especially many hazardous substances are formed in the oil used several times.
Sunflower oil boils at a temperature of 150 and more degrees. When products are exposed to processing at high temperatures, in them minerals and useful connections, and such vitamins as A and E collapse, at heat treatment are destroyed completely.
Fried food very long is digested an organism, at the same time motive function of digestive tract is broken, the digested food is badly removed. The use of fried is inadmissible at disorders of digestion and for a healthy organism extremely it isn't recommended.
The healthiest is the food which isn't subjected to heat treatment. If it is impossible to eat products in the raw, then it is possible to steam them, for example, that will allow to keep useful substances.