首页
登录
职称英语
Imagine eating everything delicious you want—with none of the fat. That woul
Imagine eating everything delicious you want—with none of the fat. That woul
游客
2024-06-10
40
管理
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. Critics, however, say the new compound can rob the body of essential vitamins and nutrients (营养物) 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 fatting 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 broke down. Manufacturers say it’s the ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular at 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. [br] 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
关键看本文第一句,“吃你想吃的可口食物,却不会长胖”。所以选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3628232.html
相关试题推荐
Imagineeatingeverythingdeliciousyouwant—withnoneofthefat.Thatwoul
Imagineeatingeverythingdeliciousyouwant—withnoneofthefat.Thatwoul
Hetalksasif__________________________.(对于这家企业他什么都懂)hekneweverythingabo
Inthenameof"zerotolerance,"ourschoolsaretreatinginnocentchildren
Inthenameof"zerotolerance,"ourschoolsaretreatinginnocentchildren
Inthenameof"zerotolerance,"ourschoolsaretreatinginnocentchildren
Inthenameof"zerotolerance,"ourschoolsaretreatinginnocentchildren
[originaltext]W:Why,Peter!Youaresweatingheavily.Wherehaveyoubeen?M:
Imaginethis:youaresittinginyourcarwhilewatchingamovie,youcanch
Imaginethis:youaresittinginyourcarwhilewatchingamovie,youcanch
随机试题
DothefollowingstatementsagreewiththeinformationgiveninReadingPassage
[originaltext]W:IknowyourcompanywasoneofthebiggestAmericancorporatio
NotSeeingtheForestfortheDollarBillsA)TheU.S.Fisha
Earthquakesoftenhappennearvolcanoes,butthisisnotalwaystrue.Thece
TrustMe,IAmaRobotRobotsafety:asrobots
采用“利用系数法”计算照度时,下列哪项与照度计算无直接关系?()A.灯的数量
()是确定两种或两种以上变数间相互依赖的定量关系的一种统计分析方法。A、趋势分
可以作为判断货币政策力度和效果的重要指示变量的货币政策目标是( )。A.最终目
由于认识到学习的重要意义而努力学习的动机是( )A.外在动机 B.内在动机
最常用的并购方式是()。A.用现金购买资产 B.用股票交换股票 C.用
最新回复
(
0
)