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发布时间:2015-06-07 来源:文档文库
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For years, doctors advised their patients that the only thing taking multivitamins does is give them extensive urine (尿.多年以来,医生们建议他的病人们,摄入多种维生素会导致他们多尿 After all, true vitamin deficiencies are practically unheard of in industrialized countries.毕竟 维生素的缺陷在不发达的国家是不为人所知的Now it seems those doctors may have been wrong. 现在看来这些医生都搞错了The results of a growing number of studies suggest that even a modest vitamin shortfall can be harmful to your health. 越来越多的研究表明,维生素的摄入量哪怕只是减少一点点都会对健康造成很大的影响Although proof of the benefits of multivitamins is still far from certain, the few dollars you spend on them is probably a good investment.虽然多种维生素对身体有益的证明还不是很清楚,在他们升上花上几美元还是个不错的投资 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.之上这个争论是被英国医学部讨论,理想的说,哈佛大学的某某和某某认为,所有的维生素供应都会被在实验的基础上科学的评估
But those studies can take a long time and often raise more questions than they answer. 但是这些研究会花很多的时间,涌现出来的问题比他们解决的还多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.从某种以上讲,研究员们致力于找出真相,这才符合他们耗费的资源
The best evidence to date concerns folate, one of the B vitamins. It’s been proved to limit the number of defects in embryos (胚胎, 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.现在的证据在于叶酸,一种维生素比,他被证明可以限制胚胎的缺陷,并且最经的一项实验中叶酸和维生素比十二和一种维生素比六减少了血管的再次阻塞
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 he art 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.维生素一的消息则更加复杂,在两年内吃个低的饮食的健康的人表现的更不容易得心脏病,但是当医生给心脏病人服用维生素一并不管用,这似乎表明维生素一的作用在于预防而不是修复重大损伤
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.尽管维生素次很受欢迎,大量服用也不会产生更多的好处,身体会快速补充维生素次,然后排出剩余的部分
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?有关多种维生素的问题大多在此,难道你还要等到所有的证明都得到证实才去服用他们吗,或者你宁愿接受有足够多证据表明他们无害并且有益
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.如果选择后者,也没有必要走向极端去买那种超大剂量和特别贵的,过量的服用会造成一些问题,包括流血不止和神经系统方面的问题,当然维生素并不能取代运动和健康的饮食 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.如果你明白任何潜在的好处都不会太大,但是会造成长