The benefits of eggs to the human body
★The lecithin, triglycerides, cholesterol and vitellin in egg yolks for brain strengthening and intelligence have good effects on the nervous system and physical development, and can delay the mental decline of the elderly and improve memory. Lecithin is regarded by medical experts as the nemesis of Alzheimer's disease.
★Protect the liver. The protein in eggs has a repairing effect on liver tissue damage. The lecithin in egg yolk can promote the regeneration of liver cells, increase the amount of human plasma protein, and enhance the body's metabolic and immune functions.
★Prevent and treat atherosclerosis American nutritionists and medical personnel have used eggs to prevent and treat atherosclerosis based on the emulsification effect of lecithin in egg yolks, and have achieved unexpected results.
★Prevent cancer Eggs contain more vitamin B2, which can decompose and oxidize carcinogens in the human body. Trace elements in eggs, such as selenium and zinc, also have anti-cancer effects. Japanese scholars have found that eggs also contain anti-cancer substances photoflavin and photopigment. One egg contains about 10 micrograms of photoflavin. Photoflavin and photopigment can inhibit the proliferation of EB virus that induces laryngeal cancer and lymphoma.
★Delaying Aging Eggs contain almost all the nutrients needed by the human body, so they are called the "ideal nutrient bank". Nutritionists call it the "complete protein model" and insisting on eating eggs in moderation is one of the experiences of many longevity people in extending their lives.
The correct way to eat eggs
There are many ways to eat eggs. In terms of nutrient absorption and digestibility, boiled eggs are 100%, scrambled eggs are 97%, tender fried eggs are 98%, deep fried eggs are 81.1%, eggs washed with boiling water and milk are 92.5%. When eaten raw, it is 30% to 50%. It can be seen that boiled eggs are the best way to eat them, but you must chew them slowly, otherwise it will affect absorption and digestion. However, for children and the elderly, steamed egg custard and egg drop soup are the most suitable, because these two methods can loosen the protein and make it easily digested and absorbed. The vitamin C content in eggs is not high, so it is best to supplement it with an appropriate amount of vegetables when eating eggs.
Eggs are a nutritious food. One egg weighs about 50 grams, contains 7 grams of protein, 6 grams of fat, and generates 82 kcal of heat energy. The amino acid ratio of egg protein is very suitable for the physiological needs of the human body and is easily absorbed by the body. The utilization rate is as high as over 98%, and the nutritional value is very high. Eggs are very rich in calcium, phosphorus, iron and vitamin A, and are also rich in B vitamins. They also contain many other vitamins and trace elements necessary for the human body. They are ideal for children, the elderly, pregnant women, patients with hepatitis, tuberculosis, anemia, and those after surgery. A good supplement for convalescent patients.
Although eggs are good, the quantity you eat should be scientific. According to recent surveys, among some urban workers, some young people who are engaged in mental work or light physical work need to eat 5 to 6 eggs a day to increase nutrition; some primary and secondary school students eat 3 eggs a day for breakfast and lunch and I also eat 1 or 2 for dinner. In some rural areas, mothers eat 10 to 15 pieces a day, and 300 to 450 pieces during confinement. They think: "Eggs are nutritious, eat more to replenish your body." In fact, this is not the case. Eating too much will bring some adverse effects to the body.
First of all, eggs contain a lot of cholesterol. Eating too many eggs will greatly increase the intake of cholesterol, causing high blood cholesterol levels and causing atherosclerosis and cardiovascular and cerebrovascular diseases. Taking mothers as an example, one egg contains approximately 250 mg of cholesterol, and 10 eggs contain approximately 2,500 mg of cholesterol. This amount is nearly 10 times the normal intake. In addition, the fat contained in eggs is saturated fatty acid. Excessive intake will inevitably cause a sharp rise in serum cholesterol and promote the occurrence of atherosclerosis and cardiovascular and cerebrovascular diseases.
Secondly, eating more eggs can easily lead to overnutrition and obesity. During postpartum period, a woman's daily caloric requirement is generally about 2,800 to 3,000 kcal, and her protein requirement is 90 g. For example, eating 10 eggs a day equals an intake of 70 g of protein, 60 g of fat, and about 820 kcal. In addition, nursing mothers also need to eat a certain amount of staple food, chicken, fish, meat, soy products, vegetables and fruits, etc. The daily caloric intake can reach 3500 to 3800 kcal, and the protein and fat intake can reach 120 ~140 grams. This far exceeds their actual daily nutritional needs, resulting in overnutrition, which can cause excess fat to accumulate in the body and cause obesity.
Eating more eggs will also cause an imbalance of nutrients in the body, thus affecting health. Our daily diet is composed of a variety of foods. A reasonable and balanced diet is required to contain various nutrients needed by the human body, and requires that various nutrients should have appropriate proportions in the diet. Because various nutrients coordinate and restrict each other to function in the body. This way, the body can develop properly and stay healthy. At all times and in all countries, no matter what kind of food, although it has high nutritional value, it cannot contain all the nutrients needed by the human body. long term consumptionA food that produces an excess of certain nutrients and a deficiency of others. Eggs are no exception. Eggs themselves cannot supply all the nutrients needed by the human body. For example, they do not contain carbohydrates and their vitamin C content is almost zero. Therefore, eating too many eggs will inevitably reduce the intake of other foods and make the intake of various nutrients unbalanced. Over time, it is easy to cause related diseases due to lack or excess of other nutrients.
Eating too many eggs will also increase the burden on the liver and kidneys. The 8 essential amino acids required by the human body can be met by eating 1 to 2 eggs a day. Since the body no longer needs it and will no longer absorb it, it will be converted into fat and accumulated in the body or wasted as calories. Moreover, the protein catabolites of those eggs eaten more will increase the burden on the liver. The large amount of nitrogen-containing waste produced after metabolism in the body will also be excreted through the kidneys, which will directly increase the burden on the kidneys, so too much Eating eggs is bad for your liver and kidneys.
So, how many eggs should a person eat a day? From a nutritional point of view, in order to ensure a balanced diet and meet the needs of the body without causing excessive nutrition, in general, it is better for the elderly to eat 1 to 2 eggs a day. . For young and middle-aged people who are engaged in mental work or light physical work, it is more appropriate to eat 2 eggs a day; those who are engaged in heavy physical work and consume a lot of nutrients can eat 2 to 3 eggs a day; teenagers and children, due to their long body , metabolism is fast, you can eat 2 to 3 pieces a day. Pregnant women, parturient women, wet nurses, those with weak health, and patients recovering from major surgery need more high-quality protein, so they can eat 3 to 4 eggs a day, but not more.