Pros and cons of vegetarian
1) longevity（延年益寿）. According to nutritionists study, vegetarians more longevity than non-vegetarians。

Pakistan turns muddy northern Indians in central Mexico and are the original（原始的）vegetarian people, average life expectancy is extremely high。

Enviable. Buddhist monks, Christian Seventh Day Adventist Church, but also eat and enjoy the longevity factor.
2) lighter weight. Vegetarian weight lighter than the meat eaters, because it is less unnecessary fat of the meat
3) lower cholesterol（胆固醇）content. Vegetarian cholesterol in the blood is always contained less than meat eaters, if too much cholesterol in the blood, it tends to cause blood vessel blockage（心血管堵塞）, a blood pressure（高血压）and heart disease the major cause.
4) The opportunity to reduce the risk of cancer. Some research indicates that meat and colon cancer（结肠癌）are very closely related.
5) than those without parasites（寄生虫）and the like. A worm（条虫）and several other parasites are transmitted by infected meat was removed on the parasite to the human body.
6) reduction of kidney（肾脏）burden. A variety of higher animals and human body waste through the blood brought to the kidneys. Meat eaters are eating the meat, once with animal blood, the more heavy burden on the kidneys.
7) easy storage（储藏）. Vegetable protein（蛋白质）than animal protein is often easier to store.
8) low price. Plant proteins cheaper than the meat
9) in line with ecological principles（生态原理）. Land required for production of one pound of beef, produce ten pounds of vegetable protein. Many ecologists predicted population explosion will force the world had to vegetarian.
10) varied. Housewives often find vegetarian, use vegetable protein, burning more than the use of general good aroma and taste of meat dishes, and production methods are also varied, that arouse a good appetite.
Everything has two sides
Disadvantages of Vegetarianism
１）Low calorie vegetarian, a serious shortage of protein and fat, mainly vegetarian easily lead to long-term malnutrition.
２）Vegetarian also easily lead to trace element（微量元素）and vitamin deficiency（缺乏症）. Essential（必需）trace elements such as zinc（锌）, calcium（钙）, iron(铁), mainly from the Luo and other food. Zinc comes mainly from animal food, 80% calcium diet from dairy and 80% iron from meats and eggs. Vegetarian zinc, calcium, low iron content, which
contains more phytic acid（植物酸）and oxalic acid（,草酸）it will hinder （阻碍）the zinc, calcium and iron and other trace elements to attract. For
example, spinach contains oxalic acid can be combined with tofu in the calcium oxalate is not absorbed by the body. Therefore, long-term
vegetarian due to lack of trace elements prone to some diseases caused by: lack of zinc can cause anorexia, pica, and decreased sexual function in adults, infertility; calcium deficiency causes rickets in children and older human bone hyperplasia(骨质增生）, osteoporosis(骨质疏松); iron
deficiency can cause anemia(贫血) and affect the intellectual
development of children（一项小儿智力发育）
Question1：. As we all know, there are a number of essential amino acids needed from meat intake, how to solve this problem？
Answer：We can get them some health food products essential amino acids Question2：Body fat is also one of the three major nutrients, we know that plants contain less fat, as a vegetarian, where do we get fat
Answer：We can get fat in these foods, such as: peanuts, soybeans and other plant seeds
All in all, whether vegetarian or meat, and only on the growth of our help we can adopt
This is my understanding of the concept of vegetarianism。

学院：土木工程与交通学院专业：市政工程技术姓名：林焕辉学号：G100102114。