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
59
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] It can be seen that large doses of multivitamins______.
选项
A、may bring about serious side effects
B、may help prevent excessive bleeding
C、are likely to induce the blockage of arteries
D、are advisable for those with vitamin deficiencies
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3006613.html
相关试题推荐
Foryears,doctorsadvisedtheirpatientsthattheonlythingtakingmultivi
Foryears,doctorsadvisedtheirpatientsthattheonlythingtakingmultivi
Foryears,doctorsadvisedtheirpatientsthattheonlythingtakingmultivi
[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?
Takingyourdogonvacationmayhavebeen【B1】______adecadeago,buttoday
Takingyourdogonvacationmayhavebeen【B1】______adecadeago,buttoday
Takingyourdogonvacationmayhavebeen【B1】______adecadeago,buttoday
Takingyourdogonvacationmayhavebeen【B1】______adecadeago,buttoday
随机试题
ImprovingYourMotivationforLearningEnglishI.Theim
下列过程模型中,()模型增加了风险分析。A.瀑布 B.原型 C.增量 D.
关于标准操作规范(SOP)的描述,不正确的是()。A.SOP对某一程序中的
坐在那里等条件,其实是懒惰思想在作怪,于是推托、消极怠工,工作________;
赵工担任某软件公司的项目经理,于2020年5月底向公司提交项目报告。该项目各任务
中国人民银行决定,自2015年3月1日起下调金融机构人民币贷款和存款基准利率。这
(2017年真题)下列说法错误的是()。A.基金管理人内部控制必须覆盖所有
下列级数中,条件收敛的是:
对于识别出的超出正常经营过程的重大关联方交易,如有相关合同或协议,注册会计师应当
足月婴,生后1天内出现黄疸,拒哺。查体:嗜睡,面色苍白,Hb90g/L,血清未
最新回复
(
0
)