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
2014-01-13
23
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 that the new compound can rob the body of essential vitamins and nutrients and can also cause unpleasant side effects in some people. So it is 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 "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, 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.
We learn from the passage that olestra is a substance that______.
选项
A、contains plenty of nutrients
B、renders foods calorie-free while retaining their vitamins
C、makes foods easily digestible
D、makes foods fat-free while keeping them delicious
答案
D
解析
细节推断题。根据原文第二段尾句中的it指代前文的olestra,new fat-free products指的就是fake fat,从这句可以得出“假脂肪”产品没有脂肪,这是由于该产品包含了olestra这种物质。又根据原文第六段第四句the taste of regular fat与选项D中的keeping them delicious对应。olestra就是使食品不含脂肪而且保持了原来味道的物质。故答案为D。
转载请注明原文地址:https://kaotiyun.com/show/MhQO777K
0
考博英语
相关试题推荐
ToliveintheUnitedStatestodayistogainanappreciationforDahrendorf’sassertionthatsocialchangeexistseverywhere.T
TheUnitedStateswastryinghardtosmoketheenemyoutoftheholesinthetargetcountry.
IntheUnitedStatesandinmany【51】countriesaroundtheworld,therearefourmainwaysforpeopletobeinformed【52】developmen
IntheUnitedStatesandinmany【51】countriesaroundtheworld,therearefourmainwaysforpeopletobeinformed【52】developmen
Asmyexamsarecomingnextweek,I’lltakeadvantageoftheweekendto_____onsomereading.
IsittruethattheAmericanintellectualisrejectedandconsideredofnoaccountinhissociety?Iamgoingtosuggestthatit
IsittruethattheAmericanintellectualisrejectedandconsideredofnoaccountinhissociety?Iamgoingtosuggestthatit
Trafficstatisticspaintagloomypicture.Tohelpsolvetheirtrafficwoes,somerapidlygrowingU.S.citieshavesimplybuilt
19世纪末,中国开始举办师范教育。1949年中华人民共和国成立之后,在各级政府的关心和支持下,中国师范教育进入了前所未有的发展阶段。在科学技术迅猛发展的今天,振兴经济的希望在教育,教师队伍的数量和质量对教育发展具有决定性的影响。在中国这样一个拥有世界教师总
随机试题
渎职罪是一种典型的职务犯罪,其犯罪主体是从业人员。()
在X6132型铣床上选用直径为100mm、齿数为16的铣刀,转速采用75r/min,进给量采用0.10mm/z。若机床进给速度调整为23.5mm/min是否合理?如不合理应调整为多少?
多发性硬化的治疗措施不包括
患者,男,30岁,30分钟前被刀刺伤右前胸部,咳血痰,呼吸困难。体检:血压107/78mmHg,脉搏96次/分,右前胸有轻度皮下气肿,右锁中线4肋间可见3cm长创口,随呼吸有气体进出伤口响声。患者半小时后收入病房,呼吸困难,轻度紫绀,右胸部皮下气肿明显
患儿,10岁。水肿,少尿4日,今日头晕、眼花,恶心、呕吐2次,抽搐1次,体检:体温37.6℃,血压22/16kPa(165/120mmHg),眼睑及双下肢水肿,尿检:蛋白(++),红细胞15—20个/HP,血尿素氮5.8mmol/L。诊断考虑为
王大明将房子租给刘大壮居住,月租金120元。现王大明因刘大壮拖欠了5个月的房租未缴,而诉诸法院,要求刘大壮给付6000元房租。现问,此案的诉讼标的指的是什么?
下列关于行政许可的情形中,人民法院不应当受理的是:()
3号《私募投资基金合同指引》适用于哪种基金类型()。
注意事项1.本试题本由给定资料与作答要求两部分构成。考试时间为180分钟。其中,阅读给定资料参考时限为50分钟,作答参考时限为130分钟。满分150分。2.请在试题本、答题卡指定位置用黑色字迹的钢笔或签字笔填写自己的姓名和准考证号,并用2B铅笔在准考证
设计要素不包括()。
最新回复
(
0
)