首页
登录
职称英语
Imagine eating everything delicious you want—with none of the fat that would
Imagine eating everything delicious you want—with none of the fat that would
游客
2024-04-04
31
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 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. [br] Why are nutritionists concerned about adding vitamins to olestra?
选项
A、People may be induced to eat more than is necessary.
B、It may trigger a new wave of fake food production.
C、It may lead to the over-consumption of vitamins.
D、The function of the intestines may be weakened.
答案
A
解析
文章最后一段第2句提到“一些营养学家担心这样一来,人们也许会不加限制地享用由代脂肪制成的食品,从而摄取更多的热量”,A与文中所陈述的观点一致;其他三项在文中均没有进行陈述。
转载请注明原文地址:https://tihaiku.com/zcyy/3540544.html
相关试题推荐
Imagineeatingeverythingdeliciousyouwant—withnoneofthefatthatwould
Imagineeatingeverythingdeliciousyouwant—withnoneofthefatthatwould
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
DietingadvisorDr.RobertAtkinsrecommendseatingadiethighinproteinf
[originaltext]Teachershavealwayshadtodealwithcheatingstudents.[16]But
[originaltext]Teachershavealwayshadtodealwithcheatingstudents.[16]But
[originaltext]M:Whatareyoueating,Samantha?Apieceofsteak?Ithoughtyou
随机试题
Althoughscientistshavelong______thehumanappendixas______organ,therei
[originaltext]W:SoRob,tellme,doyouhaveaspareroominyourhouse?M:Ab
某建筑施工材料采购原价为150元/t,运杂费为30元/t,运输损耗率为0.5%,
A.1.48m/s、2.40m/s B.1.48m/s、4.80m/s C.
下列关于健康的叙述,正确的是A.健康指的是没有疾病 B.健康指的是心理健康
沈阳故宫东路为努尔哈赤时期建造的()。A.大政殿 B.崇政殿 C.交泰殿
体育教学过程中的运动负荷变化与控制的过程是:热身和逐渐加强运动负荷的阶段、(
企业以预期信用损失为基础,进行减值会计处理的金融工具有( )。 Ⅰ.以公允价
原发性高血压合并支气管哮喘患者降压治疗,不宜选用A.哌唑嗪 B.呋塞米 C.
(2021年真题)2x20年1月1日,甲公司开始自行研发一项用于生产P产品的新技
最新回复
(
0
)