首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Imagine eating everything delicious you want—with none of the fat That would be great, wouldn’t it? New "fake fat" products
Imagine eating everything delicious you want—with none of the fat That would be great, wouldn’t it? New "fake fat" products
admin
2018-08-25
29
问题
Imagine eating everything delicious you want—with none of the fat That would be great, wouldn’t it?
New "fake fat" products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients and can also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fat-free products taste good enough to keep eating.
Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can’t be digested at all.
Normally, special chemicals in the intestines(肠)"grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids.
The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E, and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream.
Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E, and K from being absorbed. It can also prevent the absorption of carotenoids(类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc.
Manufacturers are adding vitamins A, D, E, and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.
The result of the search for an easily digestible fat turned out to be _____.
选项
A、just as anticipated
B、commercially useless
C、quite unexpected
D、somewhat controversial
答案
C
解析
第3段提到“20世纪60年代后期,化学家在寻找一种容易为婴儿吸收的脂肪时发现了Olestra,但却发现它根本不能为人体吸收”,因此,此结果是出乎意料的,C与此观点一致。
转载请注明原文地址:https://kaotiyun.com/show/16H7777K
0
大学英语六级
相关试题推荐
A、Theuniquecultures.B、People’seatinghabits.C、People’scharacters.D、Theclimateandnature.C本题问的是根据男士所说,厄瓜多尔和哥伦比亚主要区别是什么。
A、Theusers’commentonmedicineisnotalwaysreliable.B、Adsofover-the-counterproductsarenotallowed.C、Theclaimofany
A、Saltisquitenecessaryforthehealthofhumans.B、Eatingtoomuchsaltcoulddoharmtotheheart.C、Thequantityofsaltva
A、Formgoodeatinghabits.B、Workhard.C、Findasupportsystem.D、Joinarenownedgym.C本题问的是在减肥到了停滞期的时候,那些想减肥的人该怎么做。女士建议他们应该找一
WhyDepressionNeedsaNewDefinition[A]Manypsychiatristsbelievethatanewapproachtodiagnosingandtreatingdepression—li
WhyDepressionNeedsaNewDefinition[A]Manypsychiatristsbelievethatanewapproachtodiagnosingandtreatingdepression—li
WhyDepressionNeedsaNewDefinition[A]Manypsychiatristsbelievethatanewapproachtodiagnosingandtreatingdepression—li
WhyDepressionNeedsaNewDefinition[A]Manypsychiatristsbelievethatanewapproachtodiagnosingandtreatingdepression—li
随机试题
市政绩效管理协议的主要内容包括【】
按有关规定,下列采购方式中,可以进行多次报价竞争的采购方式是()。
上市公司信息披露事务管理制度应当经公司董事会审议通过,报注册地证监局和证券交易所备案。()
根据《信托法》规定,下列说法错误的是()。
案例: 2021年1月5日,赵某与钱某订立书面借款合同。次日,赵某按照约定向钱某提供借款220万元。钱某的朋友孙某与李某分别为该笔借款提供担保。其中,孙某以其自有房屋提供抵押担保,双方于1月5日签订房屋抵押合同,于1月8日办理抵押登记;李某则为之提供连带
下列关于数罪并罚的表述,正确的有()。
下列行为中,属于政府履行行政管理职能的有()。
论说文:根据下述材料,写一篇700字左右的论说文,题目自拟。一个沿街流浪的乞丐每天总在想,假如我手头要有两万元钱就好了。一天,这个乞丐无意中发觉了一只跑丢的很可爱的小狗,乞丐发现四周没人,便把狗抱回了他的窑洞里,拴了起来。这只狗的主人是本市有名的大富翁
【B1】【B13】
Whatdoyouknowaboutthelecture?
最新回复
(
0
)