Unit12翻译
Vitamins：Issues and and Answers
维生素：问与答
Vitamin A megados：Boom or Bust？
维生素A的超剂量使用:是繁荣还是衰落？
大路朝天1.At least in the ca of one fat-soluble vitamin-vitaminA-some
peopleare making themlves sick trying to get healthy.
至少有一个关于脂溶性维生素的例子—维生素A—人们在试图（使用它）让自己变得健康的时候却反而使自己生病了。
Becau the liver storage is large and is relead very slowly megados over time are unhealthy, even deadly.
因为肝对于它的储存量是很大并且释放得非常缓慢，因此随着时间的推移大剂量的维他命A是不利于健康，甚至致命的。
Although there are wi us of moderate increas of certain vitamins,there is also abu .
尽管适量地加大维生素的使用量是明智的，但仍存在滥用（现象）。
大花蕙兰的养殖方法和注意事项2.Such megados are included in listed amounts of substances that
advocates of large supplementation tell us we must have .
如此超剂量使用的（摄入品）也包括已经被列入清单的那些曾被倡导鼓动成我们必须大量摄入的（营养）补充剂。
The public press constantly reminds us that food harvesting ,storage ,and processing methods are producing “empty calorie “vegetable ,not “half as nutritious as the ones our grandparents ate .”
公共新闻不断提醒我们食物的收获，存储，和加工方法所生产"无热量"蔬菜，不及"那些我们祖父辈吃的食物的营养的一半"。
Self-proclaimed nutrition “experts “tell us that even our grandparents ‘s cooking could not provide the high amounts of nutritions we need today .那些自称为的营养"专家"的人告诉我们即使我们爷爷奶奶做的饭也不能提供我们今天所需的大量营养。
So they claim we “must “take vitamins.
所以他们声称我们"必须"摄入维生素。
3.In some individual cas of incread need or deficiency states this
卖猪肉may actually be good advice .
在某些个体维生素需求量增加或缺乏的情况下，这也许是很好的建议。
For example ,the incread nutritional demands of pregnancy and lactation often require supplemental vitamins and minerals.例如，怀孕期和哺乳期营养需求的增加经常要求补充
维生素和矿物质。
赵无极油画Also,individuals who eating habits are erratic may benefit from an appropriate intake of multivitamins.
此外，个人不稳定的饮食习惯可能从适当摄入的多种维生素中受益。
4.There is also evidence thatcertain vitamins offer protection against
dia..
还有证据表明，某些维生素可以使我们免受疾病的侵害。
Vitamin A apparently has some preventive association in the大班音乐游戏
development of epithelial cancer in sites such as the
lungs,larynx,esophagus,stomach,and urinary bladder.
维生素A 显然在一些预防上皮产生的癌症的发展恶化有一些关联，比如肺、喉、食道、胃
、和泌尿器膀胱。
Studies have shown an inver relationship between vitamin A (actually ,beta –carotene )and the rate of lung cancer.
研究显示维生素 A （实际上是β胡萝卜素) 和肺癌的发病率之间成反比关系。
5.Unfortunately,such positive findings often fuel the fires of health
faddists arching for “legitimate “reasons to take massive dos of various vitamins .大学生社会实践总结
不幸的是，这种积极的发现往往导致火上浇油的局面产生，使得追求健康的人寻找"正当"理由摄入大规模剂量的多种维生素。
This is never a good idea,of cour,becau of it upts the delicate balance of the 50-plus nutrients needed together to maintain good health.柿子的功效与作用
这当然不是一个好主意，因为它搅乱了由50多种营养素联合在一起以维持健康的微妙平衡。
This is especially not a good idea in the ca of fat –soluble vitamins,such as A,that are rapidly excreted.
这对一些脂溶性维生素来说尤其不是一个好主意，比如维生素A这种不能立即排出体外的脂溶性维生素。
6. A growing number of people are inducing toxicity by taking readily
消防手抄报全国一等奖availablemegados of vitamins. In the ca of vitamin A, pills providing five times the RDA per capsule are becoming increasingly common. Some of the results are the:
越来越多的人们因快速吸收大剂量的维他命而体存毒性。至于维他命A，药物补给的RDA含量是一颗胶囊补充的含量5倍，这现象渐渐变得普遍，部分结果如下例：
7. A 63-year-old man developed liver damage after 7 years of
supplementing his diet with 7500 ug of vitamin A every day. His diet, which included generous portions of sweet potatoes, carrots, peaches, tomatoes, and desiccated beef liver, already provide 4500 to 9000 ug/day.
一名63岁的男子在持续7年的时间里每天补充7500毫克的维生素A，结果导致了肝病。他的饮食，包括大份量的甜土豆泥，胡萝卜，桃子，西红柿和牛肉肝脏干片，每天维生素A的补充已经达到4500-9000毫克了。
8. A 20-year-old female college student was hospitalized for the
evaluation of what was thought to be a brain tumor after 2 years of supplementing her diet with 40000 to 400000 IU of vitamin A. She had suffered vere headaches, loss of appetite, and dermatitis and had veral abnormal neurologic findings.
一名20岁大学女学生在两年期间补充40000-400000IU的维生素
A之后，她被送到医院进行治疗，之后被医院认为是患上了并被诊断为脑瘤。她患上了严重的头痛，没食欲，皮肤炎，还有一些不正常的神经失常行为。
9.Whether the individuals took vitamin A supplements specifically
to ward off cancer is unknown. If that were the ca, it would be ironic. Studies associatin
g vitamin A with cancer prevention found that foods high in carotene are effective, not the carotene in pill form.
个体特别补充维生素A是否能避免癌症仍是未知的。要是真的存在这样的案例，那实在太讽刺了。有关维生素A预防癌症的调查发现，饱含胡萝卜素的食物是有效的，但并不是以药物形式的胡萝卜素。
Persons should learn that the most concentrated food sources of provitaminA(beta-carotene)are items such as mangos, carrots, cantaloupe ,green cabbage, turnip greens, sweet potatoes, and kale.
Each of the simple foods has substantially more than the recommended allowance for the whole day ——plus many other interrelated nutrients ——in just one moderate rving.
