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" product
Imagine eating everything delicious you want -with none of the fat. That would be great, wouldn’t it? New "fake fat" product
admin
2010-05-09
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 stone 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 (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 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.
OIestra, 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 olestea 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 olestras 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.
What is a possible negative effect of olestra according to some critics?
选项
A、It may impair the digestive system.
B、It may affect the overall fat intake.
C、It may increase the risk of dancer.
D、It may spoil the consumers’ appetite.
答案
C
解析
一些批评家说olestra可能阻止身体吸收维生素A、D、E和K,它还可能阻止身体对能减少癌症、心脏病等疾病发生的类胡萝卜素的吸收。在这些批评家看来,食用olestra可能会增加患痛症的危险。
转载请注明原文地址:https://kaotiyun.com/show/ilOK777K
0
大学英语六级
相关试题推荐
Attheverybeginning,SamWaltonbelievedthathewouldearnmuchmoneyevenifhesoldproductsatlowerpricesthanhisoppon
Attheverybeginning,SamWaltonbelievedthathewouldearnmuchmoneyevenifhesoldproductsatlowerpricesthanhisoppon
Peoplecouldeatmorecocoa-richproductssuchasdarkchocolatebutnotdrinkteaiftheywanttolowertheirbloodpressure,G
Peoplecouldeatmorecocoa-richproductssuchasdarkchocolatebutnotdrinkteaiftheywanttolowertheirbloodpressure,G
Inthelate1960s’,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
Inthelate1960s’,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
Inthelate1960s’,manypeopleinNorthAmericaturnedtheirattentiontoenvironmentalproblems,andnewsteel-and-glassskysc
A、Protectingbuyersofpaintings.B、Whycopiesoffamouspaintingsaremade.C、HowpaintingsaresoldintheUnitedStates.D、Pr
随机试题
公文是机关公务活动的文字记录,因而具有()
丹参与丹皮的相同功效是
关于处方调配下列说法不正确的是
以下选项中不属于QDII基金临时公告中的特殊披露要求中的是()。
下列属于证券公司可以在区域性股权市场开展的业务的是()。Ⅰ.代理开立区域性股权市场证券账户Ⅱ.与小额贷款公司合作,为企业提供融资服务Ⅲ.推荐企业挂牌和展示Ⅳ.提供财务顾问的服务
与市场风险和信用风险相比,商业银行的操作风险具有()。
直接人工费包括物业服务企业中直接从事物业管理活动的人员的()等。
根据给定材料.结合实际情况,针对市民们“没觉得北京是特别缺水的城市”这一现象,谈谈你的看法。要求:分析合理,条理清楚.语言简练,字数不超过300字。给定资料3.对北京市缺水的严重程度.有关政府部门并没有向社会过多宣讲,不过他们
ThinkofDisneyandyoumayconjureupimagesofanimatedfilmsandenchantinglyunrealthemeparks.Whatprobablydoesn’tsprin
Noone’sfaceisperfectly______.Forexample,oneeyebrowisoftenslightlyhigherthantheother.
最新回复
(
0
)