Although eggs are extremely nutritious food, there is always a flaw in people's minds, that is, the cholesterol in egg yolk is too high, which will remind us of the outbreak of hyperlipidemia or hypertension. In fact, eating more eggs may not have such a serious impact, except for patients with severe hyperlipidemia and hypertension. After all, eating too much cholesterol may also have a certain impact on total cholesterol, but if healthy people eat more eggs, it may not actually be.
Too much cholesterol in the body can lead to hyperlipidemia. Hyperlipidemia may indeed induce hypertension, because it will increase the blood viscosity and increase the accumulation of lipoprotein and fibrin in the blood vessel wall. However, hypertension is often related to more reasons, such as stenosis of the blood vessel wall and increased sidewall pressure when blood flows through it. There are also multiple reasons for the stenosis of blood vessels. The aging of blood vessels, the accumulation of more lipoproteins, or the deterioration of thrombosis can greatly hinder the smoothness of blood vessels and cause hypertension. It may also be an uncontrolled diet, such as long-term intake of high-sugar and high-fat foods, which increases blood viscosity, provides conditions for the accumulation of debris on the wall of blood vessels and atherosclerosis, and also narrows blood vessels and causes high blood pressure; Long-term intake of high-salt food is also one of the causes of hypertension. Salt provides a large amount of sodium ions, which can lead to water and sodium retention, increase blood volume, increase extravascular osmotic pressure concentration, compress blood vessels, and lead to hypertension. In a word, we can't just attribute hypertension to hyperlipidemia.
In addition, the intake of high cholesterol food is not the main cause of hyperlipidemia. There are endogenous and exogenous cholesterol in our body. Exogenous cholesterol is the cholesterol we consume from food every day, which accounts for a relatively small proportion, accounting for only 21%. Moreover, with the continuous increase of intake, the absorbed amount will be lower and lower, and their influence on total cholesterol may be very weak or even ignored. Endogenous cholesterol, which accounts for more than 81% of total cholesterol, is the main source of total cholesterol, and this part is the big part that really affects the amount of cholesterol. The secretion of endogenous cholesterol is related to many factors, such as liver health, genetic factors, long-term eating habits, exercise and so on. Many recent studies have proved that there is no direct correlation between high cholesterol and high cholesterol food intake, and the FDA of the United States has cancelled the daily cholesterol intake limit as early as 2115.
In a word, eating boiled eggs is not a direct factor to induce hypertension or hyperlipidemia, but excessive intake can lead to excessive intake of protein, which will cause the burden of kidney metabolism, and it also means more intake of fat and calories, so excessive intake is not a good thing. Although exogenous cholesterol has little effect on total cholesterol, the intake of too many eggs will also provide a small amount of cholesterol, so it is not recommended to eat too many eggs. Dietary guidelines recommend that one egg a day is the best choice.
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This question can be said from two aspects. First, if you were asked to eat two or two staple foods per meal, what would you eat? The staple food is mainly foods that provide carbohydrates, such as rice flour and coarse grains. You can choose your favorite food as the staple food, and finally all the carbohydrates you need are obtained after digestion and absorption. In fact, the same is true of eggs. It is a kind of nutritious food, which contains many nutrients that the human body needs every day, and the content is not much, which will not exceed the daily needs of the human body. Therefore, people with high blood pressure have no problem eating an egg every day.
Second, the most abundant component in eggs is cholesterol. Will these cholesterol affect blood pressure after entering the human body? In fact, this is why many people have little knowledge about how blood pressure rises and why people with high blood pressure want to limit cholesterol. < P > First, the increase of blood pressure is mainly due to three reasons: First, the blood pumped by the heart slows down after flowing through blood vessels, and a large amount of blood stays in blood vessels for too long, which will increase the pressure on blood vessels. Because of this, this situation is often the main reason for the increase of low blood pressure, that is, diastolic pressure.
The second is the result of atherosclerosis of blood vessels, decreased elasticity and contractility, and insufficient buffer for blood flow. The occurrence of atherosclerosis is indeed related to the increase of cholesterol, which is caused by too much cholesterol deposited in vascular endothelium, but this deposition does not happen for no reason, but is caused by too much low-density lipoprotein cholesterol in cholesterol on the basis of vascular endothelium damage.
The cholesterol contained in eggs is not low-density lipoprotein cholesterol, it needs the body to convert the ingested cholesterol through the liver. The body needs to consume about 311mg of cholesterol from food every day, but an egg contains only about 251mg of cholesterol, and the absorption rate of cholesterol in food is only 31%. So, only 75mg of cholesterol in an egg is absorbed into the blood, and the amount converted into low-density lipoprotein by the liver is very small, which will not lead to atherosclerosis, and of course will not affect blood pressure.
Third, the pressure on blood vessels is increased due to excessive blood volume. More than 91% of the blood is water, and most of the rest are red blood cells, white blood cells, platelets and other cells, and cholesterol is less than 1%. So eating an egg has no effect on the total blood volume at all, so how can it affect blood pressure?
To sum up, people with high blood pressure have no problem eating a boiled egg every day. In fact, the human body is very "smart", and all systems work in harmony. For example, when the cholesterol content in the body increases, the absorption of cholesterol in food will decrease, so as to ensure that the cholesterol is not excessive as much as possible, so an egg is not enough to cause the problem of excessive cholesterol in the body.
The reason why people with high blood pressure need to limit their cholesterol intake is because such people need to control the cholesterol content in their bodies more strictly than ordinary people, so as to prevent the occurrence of atherosclerosis, but even so, the cholesterol content in an egg is not enough to affect the control requirements, so people with high blood pressure can safely eat a boiled egg, and eating it every day will not have any impact on blood pressure.
if you eat too many boiled eggs, will your blood pressure be high? This question is really interesting. I heard for the first time that eating eggs can raise blood pressure. Although if you eat a lot of eggs every day, it may lead to overnutrition, obesity and metabolic disorder, which will lead to higher blood pressure, under normal circumstances, eating boiled eggs every day, or eating more boiled eggs at one time, is not necessarily related to hypertension.
I often remember that when the material life was not so developed in the past, women would prepare a lot of eggs at home after giving birth to their babies. In fact, there is no way under the condition of lack of materials, but for women with postpartum weakness, eating more eggs is still a good choice to supplement their nutrition. Eggs are rich in nutrition. Egg white is rich in high-quality protein, which contains all amino acid types needed by human body, and the absorption rate is as high as 91%. It is a good food source for human body to supplement protein. Egg yolk is rich in trace elements such as phospholipids, calcium and iron, as well as fat-soluble vitamins such as vitamin D and vitamin E, and unsaturated fatty acids such as DHA, which is also very good for supplementing body nutrition.
Therefore, from the nutritional components of eggs, eggs are a very nutritious food, and if we eat eggs healthily, cooking can be said to be the best cooking method. Compared with frying eggs, poached eggs or egg soup will cause some nutritional loss of eggs, and boiling eggs can not only maintain the nutritional components of eggs, but also absorb extra oil, which is the healthiest way to eat eggs. Usually, we eat 1~2 boiled eggs every day, which can supplement the nutritional needs of all aspects of the human body in many ways, and will not cause the problem of excess energy to the body, so there is no need to worry too much.
If you eat boiled eggs every day and happen to find yourself with hypertension, don't let the eggs back in this pot. There are many reasons for hypertension, but it really has little to do with eggs. From the diet, high-salt diet, eating too much salt every day, and too much Na ions in the body, which leads to the retention of water and sodium in cells and the increase of blood volume, is one of the reasons for salt-sensitive hypertension. Family genetic factors, long-term stress, metabolic syndrome, smoking and other factors are all factors that cause blood pressure to rise, but there is really no big relationship between eating eggs and raising blood pressure.
Many friends think that the high cholesterol content in eggs, especially egg yolks, is not conducive to cardiovascular health. With high blood pressure and hyperlipidemia, they are too scared to eat eggs. Actually, it is unnecessary. So far, there is no relevant research to prove that eating eggs by patients with high blood pressure or hyperlipidemia will increase the risk of cardiovascular diseases. The lipid components in egg yolks are partly fat-soluble vitamins. Some of them are healthy unsaturated fatty acids such as DHA, and some of them are lecithin with nutritional nerve function. Although the cholesterol content is higher than other foods, eating an egg every day will not have a further impact on hyperlipidemia, and there is no adverse effect on blood pressure. Once, a survey involving more than 21,111 people found that people at risk of cardiovascular diseases who eat an egg every day have a lower incidence of cardiovascular diseases than those who do not eat eggs.
Therefore, for patients with hypertension, firstly, we should not think that hypertension is caused by eggs. In the conditioning of healthy diet, eggs are also one of the healthy ingredients that can still be eaten. If you eat an egg every day, you don't have to worry about the impact of eggs on blood pressure or cardiovascular health. Compared with eating eggs, you might as well eat more lightly, eat less salt, snacks, fried and high-sugar foods.
This statement was popular for a period of time more than ten years ago. Based on the medical level at that time, this conclusion was not questioned too much. Many doctors even often told patients to "eat less eggs". However, with the progress of medical science, people became more and more aware of the relationship between diseases and diet, and the content asked in the question was quickly labeled as a rumor.
In fact, the differences in people's diet structure and habits are just one of the important factors that induce some chronic diseases, just as people with heavy tastes are more likely to suffer from hypertension; The reason why there is such a saying in the title is actually considering the "cholesterol" component rich in egg yolk, because in many people's cognition, excessive cholesterol intake is an important risk factor for cardiovascular disease;
However, there is still a problem of "intake". You know, cholesterol itself is also one of the main nutrients to maintain the structure and function of the body. That is to say, in order to smoothly operate all physiological functions of the human body, we have to consume a certain amount of cholesterol every day.
If we only rely on the supply of eggs without other sources of cholesterol, we should eat at least two eggs a day to meet the normal demand of cholesterol. However, in our daily diet, whether it is meat, nuts or cooking oil, we can also provide a certain source of cholesterol to the body to some extent. In this way, one egg per person a day can supplement cholesterol well without worrying about excessive cholesterol, and there will be no case of blood pressure rising due to eating eggs.
eggs are one of the most common food ingredients in our daily catering. They are loved by thousands of people, with a good taste, various methods and rich nutrition. Eggs are rich in high-quality protein, eight amino acids necessary for human body, lecithin, monounsaturated fatty acids, vitamin B1, vitamin B2, vitamin A, vitamin D, calcium, iron and zinc, and each egg contains about 7 grams of protein. The composition ratio of protein and amino acids is perfect, second only to breast milk. Eggs are an important part of a balanced diet. The Dietary Guide for China Residents (2116 edition) recommends eating 1 eggs every day and not discarding the yolk, which will not increase the risk of cardiovascular disease and diabetes.
Many people are afraid to eat more eggs because they know that egg yolk is rich in cholesterol, and the cholesterol content in egg yolk is really high. Every 111 grams of egg yolk contains about 1511 mg of cholesterol, and a 51-gram egg contains about 311 mg of cholesterol. Cholesterol is an essential nutrient for human body and an important substance that constitutes cell membrane. Cholesterol in human body is mainly divided into endogenous cholesterol and exogenous cholesterol. Self-synthesized cholesterol is endogenous cholesterol, accounting for about 71% of total cholesterol, which is the main source of cholesterol in the body. Cholesterol obtained from diet is exogenous cholesterol, accounting for about 31% of total cholesterol, which has little effect on blood cholesterol level.
Therefore, the dietary guidelines for China residents (2116 edition) have removed the restriction on cholesterol in daily diet, and the Guidelines for Healthy Lifestyle Prevention of Cardiovascular Metabolic Diseases in China (2121 edition) suggest that healthy adults without dyslipidemia can eat 3 6 eggs a week, and the daily intake of cholesterol for people at high risk of hypercholesterolemia and cardiovascular diseases should be less than 311mg, about 1 egg yolk. If you still like to eat other foods rich in cholesterol, such as animal offal, animal brain, fish eggs, crab eggs and red meat, you should reduce the number of eggs you eat every week. The risk prediction study of atherosclerotic cardiovascular disease in China shows that eating eggs in moderation every day can reduce the incidence and mortality of cardiovascular diseases.
Finally, boiled eggs are light in taste, and do not need to add extra oil and salt. Most nutrients are completely preserved, easy to digest and absorb, delicious and healthy, and have little effect on blood pressure. It is recommended that hypertensive patients eat a boiled egg every day, which is beneficial to cardiovascular health. Boiled eggs also have a disadvantage, that is, eating too fast is easy to choke, especially when eating yolk. When eating, be careful to chew slowly and eat it with porridge, milk and soup. It should be noted that some hypertensive friends like to dip in some soy sauce when eating boiled eggs. Soy sauce contains a lot of invisible salt, which is not conducive to blood pressure stability and should be avoided as much as possible.
In the morning, a patient with hypertension asked: Doctor, can't you eat eggs in the future?
I said: I didn't tell you that you can't eat eggs. There is no food that is absolutely taboo for hypertension. Anyone can eat it with low salt, but don't overdo it, especially the food with high salt, high oil and high sugar should be controlled.
The patient said: Then how can I hear people say that eating too many eggs will lead to high blood pressure?
I said: it's sheer nonsense. Eating eggs is as high as eating high.