In the nutrition science world, eggs have always been known as "nutritious foods." Indeed, eggs are one of the best sources of high-quality protein, which also contains a variety of vitamins and minerals, a small amount of omega 3 fatty acids, a large number of lecithin, lutein and other health care components. However, people do not know much about this highly nutritious food. To this end, our reporter interviewed relevant experts and answered 10 questions that people should know. 1. Which kind of egg is the healthiest? Fan Zhihong, an associate professor at the College of Food Science and Technology at China Agricultural University, points out that if the vitamin loss and protein digestibility of egg yolks are not fried to the extent that they are yellowish and brittle, the cooking methods such as steaming, boiling, frying, and frying are not much different. However, according to the degree of oxidation of cholesterol and the degree of heat, the health rankings of various cooking methods are as follows: Grade A: cooking eggs, Grade B: boiled eggs, egg soup, Grade C: scrambled eggs, egg pancakes, Grade D: egg yolk . 2. Will pickled eggs cause nutritional loss? Pickled eggs are salted eggs that have been salted. The nutrition loss during the salting process is not large, but studies have shown that the oxidation of cholesterol in pickled eggs is greater, and the formation of cholesterol oxidation products can cause cardiovascular harm. Tea eggs are also a kind of pickled eggs, and the presence of antioxidants such as tea will reduce the oxidation of cholesterol. However, Song Xin, a nutritionist at Chaoyang Hospital in Beijing, reminded that tea contains alkaloids that stimulate gastric acid secretion. Therefore, children, pregnant women, and people with poor stomachs should not eat tea and eggs. 3. Is it more appropriate to eat a few eggs a day? Prof. Cheng Yiyong, director of the China Nutrition Society, said that different groups of people have different amounts of eggs. Children, pregnant women, nursing mothers and people with large amounts of exercise can eat 1-2 eggs a day. Normal adults and seniors eat 1 egg a day. For patients with dyslipidemia or obesity, it is advisable to eat 2-4 eggs per week. 4. Does eating a plate of scrambled eggs or quail eggs (about 5) cause cholesterol to rise? The Chinese Nutrition Society recommends that ordinary adults eat no more than 300 milligrams of cholesterol per day, and hyperlipidemia should be controlled below 200 milligrams. A 50-gram egg contains 290 mg cholesterol. However, in fact, the synthesis of each cell of the human body requires cholesterol. In order to supply demand, the human body needs to synthesize more than 1,000 milligrams of cholesterol per day. Therefore, consumers do not have to worry about eating too many eggs at one time. If you reduce the amount of high-cholesterol food you eat in the next few days, there will be no increase in cholesterol. 5. Can I still eat fried eggs with a cold? When a person has a fever and a fever, the body's energy consumption is high, the resistance will be reduced, and he will not be able to eat anything, lack of nutrition, and properly supplementing eggs and other high-protein foods will be beneficial to the recovery of the body. Experts suggest that it is best to eat egg soup, egg soup, do not eat fried or fried eggs, because fried things are prone to stomach heat, not easy to digest. Is it better to have a small egg? Many consumers think that a small egg or a dark eggshell has good nutritional value. However, Fan Zhihong pointed out that there is not a certain relationship between the size of the egg and the color of the eggshell and its nutritional value. Some consumers only recognize soil eggs. In fact, from the point of view of nutritional value, soil eggs and chicken farm eggs do not differ much. Soil phospholipids and omega 3 fatty acids are higher than those of chicken farm eggs, but the mineral content is slightly lower. In the soil eggs. However, in terms of food safety, chickens run freely and the foods they eat are more miscellaneous, and they are even less safe. 7. Are functional eggs worth buying? Associate Professor Xu Guiyun of the Ministry of Agriculture's Poultry Quality Supervision, Inspection and Test Center stated that some functional eggs on the market may include individual trace elements in feed, such as high-zinc eggs, high-manganese eggs, etc., but they do not have special functions. Some businesses have claimed that Nutritional advantages have not been confirmed by relevant departments. At the same time, the intake of trace elements by the human body is standard, and excessive intake may result in poisoning. 8. Which kind of egg is the freshest? When buying eggs, there are some tips. Experts recommend that eggs be judged fresh from the following three aspects: At first glance, a layer of hoarfrost is attached to the egg shell, the eggshell is bright in color, and the pores are distinct; The hand gently shakes, no sound is fresh eggs; three tests, the eggs into cold water, sinking eggs. 9. Eggs do not need to put into the refrigerator? The US Reader's Digest website once wrote that the surface of eggs is naturally covered with a layer of bacteriostatic substances, and it is difficult for the outside microorganisms to invade. Therefore, it is not easy to degenerate. However, the boxes of eggs purchased in the supermarket have been manually cleaned and disinfected, and the outer “protective film†has also been removed. So, those clean and fresh eggs must be kept in the refrigerator. 10. How long is it appropriate to store eggs? The shelf life of egg packaging is generally 45-60 days, so many people will be very safe to save eggs on a month. In response to this practice, Xu Guiyun reminded that if the eggs are stored for a long time, it will not only bring potential safety problems, but their nutrition will also deteriorate. Xu Guiyun suggested that fresh eggs are best during the week, but if the conditions are not met, it can be within half a month. Zinc Fortifier,Food Additive Zinc Sulfate,Zinc Sulfate Heptahydrate,Zinc Sulfate Monohydrate LIANYUNGANGLONGTAIWEI FOOD INGREDIENTS CO.,LTD. , https://www.longtaiweifood.com