吃肉的好处 .doc

吃肉的好处 在现代人一致呼吁健康饮食的口号声中，大部分人过多地放大了蔬菜的好处，却忽略了肉类中的营养成份。不少爱美女性拒“肉”于千里之外，甚至谈“肉”色变，深怕 肉类中的脂肪和热量影响自己的身材，从而强迫自己成为准素食主义者。 殊不知，肉类中含有多种人体所必须的营养素。英国营养基金会总干事卡比达教授就指出，不吃红肉会令身体较易受细菌感染，而且肉类含有多种人体必要的营养（人体血液所需的铁质和骨骼所需的维他命 D等），缺少会导致多种疾病。吃红肉不但可以增强免疫力，红肉中含有的一种特殊脂肪更有减肥功效！ 吃肉与美感 其实，适当的脂肪能使皮肤富有弹性不易松驰；能使皮肤看起来光滑润泽而不易干燥粗糙；能使身体匀称，富有曲线美感。如果过于“苗条”，皮肤就紧贴骨骼，骨骼的锥形、三角形轮廓特征会很明显，反而会给人瘦骨嶙峋的感觉，失去美感。 吃肉与健康 一些脂溶性维生素A、D、E等必须溶解在脂类食物中才能被机体吸收利用。如果不吃脂肪，只吃维生素，会容易造成各种维生素缺乏症。缺乏维生素A会引起皮肤干燥粗糙、头发枯黄干燥、鳞屑增多、指甲凹凸不平、角膜软化以及夜盲症等；缺乏维生素E会影响生殖系统的正常发育，出现早衰症状；缺乏维生素D更会引起骨质疏松、软化，易造成骨折。 吃肉与长寿 关于寿命与动物蛋白质之间的关系，日本东京老龄综合研究所曾做过一次调查，对象是 100名百岁以上老人。通过分析他们的饮食结构得知，“在每天摄取的蛋白质总量中，动物蛋白质所占比例男性为596，女性为576，而当时日本全国的人均同比只有487”。从这一侧面可看出，摄取足够的动物蛋白质可明显提高长寿概率。该研究所推出的“2001年中年人防老计划”中明确了老年人的蛋白质摄取与生活能力的若干关系，例如，就休闲及写作这类脑力劳动多大程度受饮食的影响这一问题展开的调查，对650名65岁以上的人做了两年的跟踪随访，结果表明在经常吃肉、乳制品和油性食品的人群中生活能力低下的发生率为078，习惯于吃蔬菜、水果的人为093，而三餐不离米饭、咸菜或酱汤的人则高达103。可见经常吃肉的老人大脑活性衰减、生活能力下降的发生率比较低。 吃肉与智力 人体细胞中除去水分，60左右为蛋白质，30左右为脂肪，而大脑细胞中的脂肪却高达6065。这说明，脂肪是大脑工作的重要物质，而高效率的思维活动，都需要消耗大量脂肪。科学研究发现，那些不吃脂肪的人，其智力也在降低，可见脂肪确实会支撑脑力。 肉的好处纵然说得再多，也不可过量，合理搭配， 掌握好肉类与蔬菜之间的平衡膳食才是关键。另外，美国和挪威的科学家最近亦表示，红肉、芝士和奶类产品中含有一种名为复合亚油酸(CLA)的天然脂肪，可以改善人体脂肪和肌肉的比例，有助控制体重。此外，研究结果亦显示复合亚油酸有预防癌症、控制哮喘和糖尿病、增强免疫能力和减缓血管硬化等功效，对人体有莫大好处。 吃肉可以促进我国畜牧业的发展，带动国民经济的发展！可以补充人体所需的蛋白质！还可以帮助身体吸收脂溶性的维生素.吃牛排的好处 牛肉中所含的人体所需元素，是最多最高最丰富的。其中包括：蛋白质、血质铁、维生素、锌、磷及多种胺基酸。 人体在吸收多样化食物的营养中，不可能全部摄取到所需营养，但从牛肉中摄取为最直接和最充整的。而且，牛肉的营养成份很高，人体每天需要的22种胺基酸，一半以上的胺基酸可由人体制造，但有8种胺基酸在人体内无法自制的，称为必需胺基酸，得由食物中摄取。 牛肉食物中所含有人体所须这8种必需的胺基酸，而且是100吸收，任何动、植物的营养没法与牛肉相比，所以，有吃一块牛肉，抵得上一天的营养的说法。 蛋白质是维持人体健康所不可欠缺的营养素。蛋白质与糖、脂肪为人体所需三大营养素，也是维持生命最重要的营养素。我们的肌肉、皮肤、器官、骨骼、血管、毛发、指甲等都是由它们所构成，也是制造血液、贺尔蒙、氧气、神经传达物质、免疫物质的原料。 牛肉含均衡的必须氨基酸，食品内所含的蛋白质，在体内会被小小单位的氨基酸分解利用，而必须氨基酸无法从体内合成，需从食物补给。 必须氨基酸大人需8种、小孩多2种为10种，牛肉的另一特征，即是含有均衡营养的氨基酸。发育期的小孩为有强壮的体魄；老年人消化机能退化、吸收能力降低等，都需多加摄取。 牛肉含丰富、易为人体吸收的铁质，将氧气、能量输送到身体各处，都靠血液中红血球的血红素。而其成分都不能缺少铁质。食物中所含的铁质共分2种，常减肥的女性容易出现贫血的现象，对于想保持神采奕奕的人，预防贫血是很重要的。 铁质不足所引发的症状：贫血、血气不良、手脚冰冷、指甲易断、头发易分岔。女性由于月经，每月要失血15-30mg的铁，因此铁的需要量多男性2成。此外，为了制造妊娠中婴儿的血液，妊娠前期所需的铁为10mg，妊娠后期和哺乳中需要男性的2倍、即20mg的铁质。常食用容易吸收、低热量的牛肉，可大量增加铁质的吸收。 牛肉的品质是要靠牛的饲养。美国牛肉，全世界屈指一数。本公司的西餐牛排已经经营20年历史，保持牛肉的原汁原味，尤其是其中的营养成份，通过冷藏、解冻、烤煮、上盘有严格规定，煎烤出来的牛排，鲜嫩多汁，营养价值极高。 膳食是很重要的，吃得健康、实惠、又营养，唯有牛排佐食。豆腐的不足之处豆腐的不足之处是它所含的大豆蛋白中缺少一种必需氨基酸蛋氨酸,若单独食用,蛋白质利用率低。如搭配一些别的食物,使大豆蛋白中所缺的蛋氨酸得到补充,使整个氨基酸的配比趋于平衡。人体就能充分吸收利用豆腐中的蛋白质。而鱼类体内这种氨基酸含量非常丰富,相对苯丙氨酸却比较少,而豆腐中则含量较高。这样两者合起来吃,可取长补短、相辅相成,提高营养价值。豆腐和鱼合吃,还有另外一个优点,豆腐含钙量较多,而鱼中含维生素D,两者合吃,借助鱼体内维生素D的作用,可使人体对钙的吸收率提高很多倍。因此,特别适合中老年人、青少年、孕妇食用。豆腐炖鱼除了其营养价值的互补作用外,还别有风味。广东地区最常见的一道好菜豆腐炖鱼头,是先把鱼头煎好,再加水放入豆腐一起炖,熟时香气四溢,颜色鲜白,吃起来不油不腻,四季皆宜。除了鱼以外,还有蛋类、肉类蛋白质中的蛋氨酸含量也较高,豆腐应与此类食物混合食用,如豆腐炒鸡蛋、肉末豆腐、肉片烧豆腐等。这样搭配食用,便可提高豆腐中蛋白质的利用率。 牛肉中所含的人体所需元素，是最多最高最丰富的。其中包括：蛋白质、血质铁、维生素、锌、磷及多种胺基酸。 人体在吸收多样化食物的营养中，不可能全部摄取到所需营养，但从牛肉中摄取为最直接和最充整的。而且，牛肉的营养成份很高，人体每天需要的22种胺基酸，一半以上的胺基酸可由人体制造，但有8种胺基酸在人体内无法自制的，称为必需胺基酸，得由食物中摄取。 牛肉食物中所含有人体所须这8种必需的胺基酸，而且是100吸收，任何动、植物的营养没法与牛肉相比，所以，有吃一块牛肉，抵得上一天的营养的说法。 牛肉的瘦肉部分，含有丰富的优质蛋白质、铁质、维生素B群等优异的营养成分。 蛋白质是维持人体健康所不可欠缺的营养素。蛋白质与糖、脂肪为人体所需三大营养素，也是维持生命最重要的营养素。我们的肌肉、皮肤、器官、骨骼、血管、毛发、指甲等都是由它们所构成，也是制造血液、贺尔蒙、氧气、神经传达物质、免疫物质的原料。 牛肉含均衡的必须氨基酸，食品内所含的蛋白质，在体内会被小小单位的氨基酸分解利用，而必须氨基酸无法从体内合成，需从食物补给。 必需氨基酸大人需8种、小孩多2种为10种，牛肉的另一特征，即是含有均衡营养的氨基酸。发育期的小孩为有强壮的体魄；老年人消化机能退化、吸收能力降低等，都需多加摄取。 牛肉含丰富、易为人体吸收的铁质，将氧气、能量输送到身体各处，都靠血液中红血球的血红素。而其成分都不能缺少铁质。食物中所含的铁质共分2种，常减肥的女性容易出现贫血的现象，对于想保持神采奕奕的人，预防贫血是很重要的。 铁质不足所引发的症状：贫血、血气不良、手脚冰冷、指甲易断、头发易分岔。女性由于月经，每月要失血15-30mg的铁，因此铁的需要量多男性2成。此外，为了制造妊娠中婴儿的血液，妊娠前期所需的铁为10mg，妊娠后期和哺乳中需要男性的2倍、即20mg的铁质。常食用容易吸收、低热量的牛肉，可大量增加铁质的吸收。 牛肉的品质是要靠牛的饲养。美国牛肉，全世界屈指一数。所以，本人喜欢上西餐牛排已是不少年的历史，其保持牛肉的原汁原味，尤其是其中的营养成份，通过冷藏、解冻、烤煮、上盘有严格规定，煎烤出来的牛排，鲜嫩多汁，营养价值极高The benefits of eating meat In the same appeal to peoples healthy eating amid slogans, most of them too much to enlarge the benefits of vegetables, but it ignores the meat of nutrients. Beauty, many women refuse to meat at arms length, or even to talk about the meat of fearful, afraid of the fat in meat and heat affected his body, thus forced to become quasi-vegetarian. As everyone knows, the meat in the human body contains a variety of necessary nutrients. British Nutrition Foundation, Director-General of the card up to more than a professor pointed out, do not eat red meat would make the body more vulnerable to bacterial infection, and a variety of meat containing the necessary nutrients the body (human blood and bones of iron needed for the necessary vitamins D, etc.), will lead to a lack of a variety of diseases. Eat red meat, not only can enhance immunity, red meat contains a special anti-obesity are more Fatty! Meat and sense of beauty - in fact, appropriate fatty skin elastic relaxation is not easy; skin looks smooth and moisturizing dry rough is not easy; make the body symmetry, the sense of beauty full of curves. If too slim, close to the skin on the bone, the bone-shaped structure, characteristics of the outline of the triangle will be very clear, but it would give people the feeling thin, loss of sense of beauty. Meat and health - some of the fat-soluble vitamins A, D, E, and so must be dissolved in lipids in food can be absorbed by the body to use. If you do not eat fat, eat vitamins, is liable to lead to a variety of vitamin deficiency. A lack of vitamin A cause rough dry skin, brown hair and dry, increasing Lin Xie, uneven fingernails, as well as to soften the cornea, such as night blindness; a lack of vitamin E may affect the normal development of the reproductive system, the emergence of symptoms of premature senility; a lack of vitamin D will lead to osteoporosis , To soften and easy to cause fracture. Meat and live longer - on the life and the relationship between animal protein, Tokyo, Japan Aging Research Institute made a survey of 100 elderly people over 100 years. By analyzing the structure of their diet that, the daily intake of total protein, animal protein percentage of 59.6 percent for men and women to 57.6 percent, while Japan was the countrys per capita the same period last year, only 48.7 %. This can be seen from the side, adequate intake of animal protein can significantly increase the probability of longevity. The Institute launched the middle-aged people in 2001 to provide for old age defined in the elderly living with the protein intake capacity of a number of relationships, for example, the leisure and writing this type of mental work by catering to what extent the impact of this issue Survey of 650 people over the age of 65 did a two-year follow-up results show that regular meat, dairy products and oily food of the poor people living in the incidence rate of 0.78, are used to eating vegetables, fruits 0.93 man-made, three meals a day and always rice, miso soup and pickles or people is as high as 1.03. The elderly often can be seen eating meat of the brain activity of decay, the life of the lower incidence is relatively low. Meat and intelligence - the human body cells to remove water, 60% protein, 30% for fat, and brain cells in the fat was as high as 60-65%. This shows that fat is an important substance of the brain, and efficient way of thinking, need to consume a large amount of fat. Scientific research found that those who do not eat fat, which is also lower intelligence, shows that fat does mental support. Although the benefits of meat put it more, not to be excessive, with a reasonable, meat and vegetables have a good balance between diet is the key. In addition, scientists in the United States and Norway also recently said that the red meat, cheese and dairy products contain a compound known as linoleic acid (CLA) of natural fats, can improve the body fat and muscle ratio, it would help control weight . The study also showed that linoleic acid compound to prevent cancer, asthma and diabetes control, and enhance immunity such as hardening of the arteries and slow down the effectiveness, of great benefit to the human body. Meat can promote the development of animal husbandry in China, promote the development of the national economy! To add to the body required for protein! It also helps the body absorb fat-soluble vitamin. The benefits of steak Beef contained the necessary elements of the human body is up to a maximum of the richest. These include: protein, blood quality iron, vitamins, zinc, phosphorus and a variety of amino acids. In the diversity of the human body to absorb nutrients in food, it is impossible that all the necessary nutrition intake, but intake of beef for the most direct and charge of the whole. In addition, beefs nutrients high, the human body needs every day of the 22 kinds of amino acids, more than half of the amino acids the human body can manufacture, but there are 8 kinds of amino acids in the human body can not self-made, known as essential amino acids , By food intake. Food containing beef in the human body to be necessary for this amino acid 8, and is 100% absorption of any animal and plant nutrition of beef and can not, therefore, have to eat a piece of beef, worth a days nutrition Said. Protein is the maintenance of human health can not be a lack of nutrients. Protein and sugar, fat of the three major nutrients needed for the human body, is the most important life-sustaining nutrients. We have the muscle, skin, organs, bones, blood vessels, hair, nails, and so they are posed, but also manufacture blood, hormone, oxygen, nerve convey material, raw material immunity. Beef must be balanced with amino acids, food contained protein, the body will be small units of the use of amino acids break down, and must not be from the amino acid synthesis in the body, from the food supply. Amino acids must - take 8 adults, 2 children more than 10 species of the other characteristics of beef, that is, a balanced diet containing amino acids. Period for the development of the children have a strong physique; degradation of the digestive function of the elderly, reduce the absorption capacity, and so on, need more intake. Beef is rich and easy for the human bodys absorption of iron, oxygen and energy into different parts of the body, by the red blood cell hemoglobin in the blood. And its composition can not be a lack of iron. The iron content in food is