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
2019-06-23
24
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/B8X7777K
0
大学英语六级
相关试题推荐
Innovation,theeffectiverecipeofprogress,hasalwayscostpeopletheirjobs.Overthepast30yearsthedigitalrevolutionh
A、Youngpeoplebecomeaddictedtosmoking.B、Youngpeoplediefromlungcancer.C、Youngpeoplecommitmorecrimes.D、Youngpeopl
A、Sheisdoingapaper.B、Shemissedthelecture.C、Sheisinterestedinthetopic.D、Sheiswritingapaperforascholarship.
ThebesttimetoviewtheMonaLisa,accordingtoanewbookonthebesttimestodothings,isaroundnineo’clockonaSunday
A、Americanseatmorehamburgersthanbefore.B、Americanseatmorefastfoodthantheydid.C、MostAmericansarefondofeatings
A、Aninsurancepackageforforeigncompanies.B、Insuranceplansdesignedforforeignemployees.C、Apositioninhiscompanythat
A、Theincreaseinbeachfrontpropertyvalue.B、Anexperimentalengineeringproject.C、TheerosionofcoastalareasD、Howtobuil
A、Theydidnotusesquarenumbers.B、Theyusedcomplexmeasuringinstruments.C、Theyrecordedmathexercisesontablets.D、They
NextmonthBritonswillhaveyetmoresmartphonestochoosefrom,whendevicesfromWiko,atwo-year-oldFrenchcompany,goons
Oldstereotypesdiehard.Pictureavideo-gameplayerandyouwilllikelyimagineateenageboy,byhimself,compulsivelyhammer
随机试题
氢氧化钙盖髓剂作用如下,除外
A、益气补肺,止咳定喘B、补肾纳气,涩精止遗C、益气固表,健脾补肾D、滋阴清肺,止咳平喘E、清肺润燥,化痰止咳七味都气丸的功能()。
四缝主要用于治疗小儿()。
李某以故意杀人罪被A市中级人泯法院判处死刑立即执行,并经最高人民法院核准,接到最高人民法院执行死刑的命令后,交付执行前,发现下列哪些情况的,应当停止执行死刑,并且立即报告最高人民法院?
难溶电解质CaF2饱和溶液的浓度是2.0×10-4mol/L,它的溶度积是()。
简述学前儿童美术教育的目标。
在上文横线上填入相关词语,顺序正确的一组是()。在文中四个加点的词中必须修改的是()。
物联网就是“物物相连的互联网”。()
关于计算机软件、硬件配置和网络系统配置说明,应该包含在以下哪个文档中
•YouhavetomakeanappointmentwithMaryattheHeadoffice.•WriteanemailtoMary.•tellingherhowmanypeopleareplann
最新回复
(
0
)