首页
登录
职称英语
For years, doctors advised their patients that the only thing taking multivi
For years, doctors advised their patients that the only thing taking multivi
游客
2023-09-12
41
管理
问题
For years, doctors advised their patients that the only thing taking multivitamins doses is giving them expensive urine (尿). After all, true vitamin deficiencies are practically unheard of in industrialized countries. Now it seems those doctors may have been wrong. The results of a growing number of studies suggest that even a modest vitamin shortfall can be harmful to your health. Although proof of the benefits of multivitamins is still far from certain, the few dollars you spend on them is probably a good investment.
Or at least that’s the argument put forward in the New England Journal of Medicine. Ideally, say Dr. Walter Willett and Dr. Meir Stampfer of Harvard, all vitamin supplements would be evaluated in scientifically rigorous clinical trials. But those studies can take a long time and often raise more questions than they answer. At some point, while researchers work on figuring out where the truth lies, it just makes sense to say the potential benefit outweighs the cost.
The best evidence to date concerns folate, one of the B vitamins. It’s been proved to limit the number of defects in embryos, and a recent trial found that folate in combination with vitamin B 12 and a form of B6 also decreases the re-blockage of arteries after surgical repair.
The news on vitamin E has been more mixed. Healthy folks who take 400 international units daily for at least two years appear somewhat less likely to develop heart disease. But when doctors give vitamin E to patients who already have heart disease, the vitamin doesn’t seem to help. It may turn out that vitamin E plays a role in prevention but cannot undo serious damage.
Despite vitamin C’s great popularity, consuming large amounts of it still has not been positively linked to any great benefit. The body quickly becomes saturated with C and simply excretes (排泄) any excess.
The multivitamins question boils down to this: Do you need to wait until all the evidence is in before you take them, or are you willing to accept that there’s enough evidence that they don’t hurt and could help?
If the latter, there’s no need to go to extremes and buy the biggest horse pills or the most expensive bottles. Large doses can cause trouble, including excessive bleeding and nervous system problems.
Multivitamins are no substitute for exercise and a balanced diet, of course. As long as you understand that any potential benefit is modest and subject to further refinement, taking a daily multivitamin makes a lot of sense. [br] At one time doctors discouraged taking multivitamins because they believed that multivitamins______.
选项
A、could not easily be absorbed by the human body
B、were potentially harmful to people’s health
C、were too expensive for daily consumption
D、could not provide any cure for vitamin deficiencies
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3006610.html
相关试题推荐
Foryears,doctorsadvisedtheirpatientsthattheonlythingtakingmultivi
Patientswithnighteatingsyndromeoftenwakeupmultipletimesduringthe.nig
[originaltext]ManychangesaretakingplaceinfoodstyleintheU.S.Amer
[originaltext]ManychangesaretakingplaceinfoodstyleintheU.S.Amer
Thegovernmentissaid______.(正在考虑采取紧急措施来减轻其承受的金融压力)tobeconsideringtaking
[originaltext]M:Howisschoolgoing,Barbara?Areyoutakinganynewclasses?
[originaltext]M:Howisschoolgoing,Barbara?Areyoutakinganynewclasses?
[originaltext]M:Howisschoolgoing,Barbara?Areyoutakinganynewclasses?
Wearealwaysadvisedthat______________________(从书本汲取知识的最有效办法是在页边空白处做有见地笔记).o
Takingyourdogonvacationmayhavebeen【B1】______adecadeago,buttoday
随机试题
AUNESCOWorldCulturalHeritageSite,theTerracottaWarriorsandHorsesMu
AsanimmigranttoNorthAmerican,youwillneedtoensurethatemployersan
IrishRiverdanceRiverdancedisplaysmodernIrishcu
信息系统开发方法各有优、缺点,下面描述中,( )不属于原型法的主要优点。A.原
男,43岁,乘车时汽车突然刹车,右膝撞于前排椅背上,感右髋部剧痛,右大腿后侧,小
下列关于工程监理工作和工作性质的表述中,正确的是( )。A、工程监理机构应尽力
赤足下田耕种可能感染A.丝虫B.华支睾吸虫C.钩虫D.旋毛虫E.蛲虫
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定规律性: A.如上
以下哪项不符合支气管哮喘的表现()A.血中可有嗜酸性粒细胞增高 B.血清IgE
十六进制数B9H对应的二进制数为()。A.11001001 B.10111
最新回复
(
0
)