每天应该吃多少鸡蛋才合适

　　首先，鸡蛋中含有大量胆固醇，吃鸡蛋过多，会使胆固醇的摄入量大大增加，造成血胆固醇含量过高，引起动脉粥样硬化和心、脑血管疾病的发生。以产妇为例，一个鸡蛋约含胆固醇250毫克，10个鸡蛋约含2500毫克胆固醇。这个量，是正常摄入量的近10倍。加之，鸡蛋中富含的脂肪属饱和脂肪酸，摄入过多，必然会使血清胆固醇急剧上升，并能促使动脉粥样硬化和心脑血管病的发生。 　　其次，多吃鸡蛋容易造成营养过剩、导致肥胖。妇女产后在哺乳期间，每天热能的需要量一般为2800～3000千卡左右，蛋白质需要量为90克，如每天吃10个鸡蛋，等于摄入70克蛋白质，60克脂肪，约820千卡热量，加之乳母还要吃一定量的主食、鸡、鱼、肉、豆制品、蔬菜及水果等，每天热能摄入量可以达到3500～3800千卡，蛋白质和脂肪的摄入量都可达到120～140克。这就远远超过了她们每天的实际营养需要，致使营养过剩，会使多余脂肪在体内堆积而形成肥胖。 　　多吃鸡蛋还会造成体内营养素的不平衡，从而影响健康。我们的日常膳食是由多种食物组成的，合理的平衡膳食，要求含有人体所需要的各种营养素，并要求各种营养素在膳食中都应有适当的比例。因为，各种营养素在体内是互相协调、互相制约而发挥作用的。这样，身体才能正常发育和保持健康。 　　古今中外，不论哪一种食物，尽管它的营养价值很高，也不可能含有人体所需的全部营养素。长期食用一种食物，会使某些营养素过剩，而另一些营养素缺乏。鸡蛋也不例外，鸡蛋本身也不能供给人体所需的全部营养素，比如，它本身不含碳水化合物，维生素C含量也几乎是零。因此，过多吃鸡蛋，必然会使其他食物摄入量相对减少，使摄入的各种营养素不平衡。天长日久，容易造成由于其他营养素缺乏或过剩而引起相关疾病。 　　吃鸡蛋过多，还会增加肝脏与肾脏的负担。人体所需的8种必需氨基酸，每天吃1～2个鸡蛋，就可以满足需要。由于身体已不需要，也不会再吸收利用，就会转化为脂肪堆积体内或当作热量被白白浪费掉。而且多吃进去的那些鸡蛋，其蛋白质分解代谢产物会增加肝脏的负担，在体内代谢后所产生的大量含氮废物，还都要通过肾脏排出体外，又会直接加重肾脏的负担，所以过多吃鸡蛋对肝脏和肾脏都不利。 　　那么，一个人每天吃几个鸡蛋才比较合适呢?从营养学的观点看，为了保证平衡膳食、满足机体需要，又不致营养过剩，在一般情况下，老年人每天吃1～2个比较好。对于青年和中年人，从事脑力劳动或轻体力劳动的，每天吃2个鸡蛋也比较合适;从事重体力劳动，消耗营养多的每天可吃2～3个鸡蛋;少年和儿童，由于长身体，代谢快，每天也可吃2～3个。孕妇、产妇、乳母身体虚弱者以及实行大手术后恢复期的病人，由于需要多增加优良蛋白质，每天可吃3～4个鸡蛋，但不宜再多。 First, the egg contains large amounts of cholesterol, eat egg too much, will lead to greatly increased intake of cholesterol, resulting in high blood cholesterol levels, causing atherosclerosis http://hitjob.net/post/300.html and heart, cerebrovascular disease. To maternal, for example, an egg contains about 250 mg cholesterol, 10 eggcontains about 2500 milligrams of cholesterol. This volume, is almost 10 times of the normal intake. In addition, the egg is rich in saturated fatty acids in fat, too much, will make sharp rise in http://www.hjmgyt1.com/post/467.html serum cholesterol, and can promote atherosclerosis and the occurrence of cardio cerebral vascular diseases. Second, eat egg easily lead to excess nutrients, leading to obesity. Postpartum women during lactation, need every heat energy for the general 2800 ~ 3000000card, requirement for protein is 90 grams, such as eating 10 egg per day,equivalent to 70 grams of protein, 60 grams of fat, about 820000 calories, and the nurse must have www.hjmgyt1.com a certain amount of staple food, chicken, fish, meat,beans products, vegetables and fruit, daily caloric intake can reach 3500 ~3800000 calories, protein and fat intake can be reached 120 ~ 140 grams. Thisis far more than their actual daily nutritional needs, resulting in excess nutrients,will make the excess accumulation of fat in the body and the formation of obesity. Eat egg will cause nutrient imbalances in the body, thus affecting the healthy.Our daily diet is composed of a variety of food, a balanced diet and reasonable,containing a variety of nutrients the body needs, and demanded a variety of nutrients in the diet should have an appropriate ratio. Because, a variety ofnutrients is coordinated, mutual constraints play a role in the www.wxgs7.com body. In this way,the body in order to develop normally and keep healthy. At all times and in all countries, regardless of what kind of food, despite its high nutritional value, also may not contain all the nutrients needed by the body. The long-term consumption of a food, can make a surplus of certain nutrients, while others are a lack of nutrients. Egg is no exception, all the nutrition egg itself can not supply the human body needs vitamin, for example, which in itself does not contain carbohydrates, vitamin C content is almost zero. Therefore, eating too much egg, will make the relative reduction in intake of other foods, so that a variety of nutrient intake imbalance. After a considerable period of time, easy to cause the lack or excess of other nutrients and related diseases. Eat egg too much, will increase the burden on the liver and kidney. 8 kinds of essential amino acids needed by the body, eat every day 1 ~ 2 egg, can meet the needs of. Because the body no longer need, it will not be absorbed and used, will be converted to fat accumulation in vivo or deemed to have been wasted heat. And those that eat into the egg, the protein catabolism www.njjinshan.com products will increase the burden on the liver, metabolized in the body produced by a large number of nitrogenous waste, but also to be excreted through the kidneys, will directly increase the burden on the kidneys, so too much to eat egg are unfavorable to the liver and kidney. So, a person eat a few egg is more appropriate? From the nutritional point of view, in order to ensure a balanced www.xhtuonline.com diet to meet the body needs, and will not cause excess nutrients, under normal circumstances, the elderly eat 1 ~ 2 well.For the young and middle-aged people engaged in mental work, or light manuallabor, 2 per day to eat an egg more appropriate; engaged in heavy manuallabor, consumption of more nutritious per day to eat 2 to 3 egg; adolescents and children, due to long body, fast metabolism, every day to eat 2 to 3. Pregnant women, mothers, lactating women and those too weak to implement www.hitjob.net the recovery period patient after the operation, due to the need for more protein to increase the fine, every day can eat 3 to 4 egg, but not more.