2. As a traditional special food in China, fried food has always been favored by people. Many chubby children in our school are lovers of fried food.
3. Is fried food a healthy food? Why do so many little fat people look strong on the surface, but their bodies are extremely weak, and they can't breathe after a little exercise for two laps? Analysis: Fried food is a traditional convenience food. Using oil as a heat exchange medium, starch in fried food is gelatinized, protein denatured, and water escapes in the form of steam, which makes the food have a crisp and special taste.
4. Using frying cooking method can kill bacteria in food, prolong the shelf life of food, improve the flavor of food and enhance the digestibility of food nutrients, so fried food is deeply loved by people at home and abroad.
5. However, recent studies show that there are great problems in the safety of fried food.
6. The starch food processed at high temperature has high acrylamide content. Acrylamide is a known human carcinogen, which is potentially harmful to human health.
7. Scientific basis: Some decomposition and polymerization products of oil are toxic to human body when cooking at high temperature.
8. In the process of frying food, when the temperature reaches 250 ~ 300℃, the fatty acids of glycerides with the same molecule or glycerides with different molecules will polymerize, which will increase the viscosity of oil and generate cyclic monomers, dimers, trimers and polymers.
9. Because cyclic monomers can be absorbed by human body, they are very toxic. The hexadiene cyclic compound, which belongs to cyclic monomer, was separated, mixed with basic feed at a ratio of 20% and fed to rats, and died in 3 ~ 4 days. Fatty liver and hepatomegaly appeared in rats mixed with 5% ~ 10%.
10. Dimer can cause slow growth, hepatomegaly and reproductive dysfunction in animals.
The trimer above 1 1. is nontoxic because it is too large to be absorbed by human body.
12. In addition, fried and pickled fish and meat can form carcinogen nitrosopyridine, which will affect human health if eaten for a long time.
13. research results: fried food is high in calories, high in fat and oxidant, and it is a dangerous food that often leads to hyperlipidemia and coronary heart disease. No matter the nutrition of vitamins A and E in oil is destroyed at high temperature, the nutritional value of oil is greatly reduced, and a large number of carcinogens are produced only during frying.
14. Research shows that the incidence of some cancers of people who often eat fried food is much higher than that of people who don't or seldom eat fried food.
15. My suggestion: students should grow up. If you want to grow up healthily, I suggest you eat more fresh vegetables, fruits, meat, eggs, rice and flour, because these foods contain nutrients necessary for our growth and are healthy foods.