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标题: 我真的不是针对谁。老女人吃维他命补充丸会增加死亡风险 [打印本页]

作者: 萨米 时间: 2011-10-24 11:36:50 标题: 我真的不是针对谁。老女人吃维他命补充丸会增加死亡风险

本帖最后由萨米于 2011-10-24 12:38 编辑

http://www.bbc.co.uk/news/health-15238610

Vitamins linked with higher death risk in older women

When it comes to vitamins, it appears you could have too much of a good thing, say researchers who report a link between their use and higher death rates among older women.

      Experts have suspected for some time that supplements may only be beneficial if a person is deficient in a nutrient.
      And excess may even harm, as the study in Archives of Internal Medicine finds.
      All of the women, in their 50s and 60s, were generally well nourished yet many had decided to take supplements.
      Multivitamins, folic acid, vitamin B6, magnesium, zinc, copper and iron in particular appeared to increase mortality risk.
      The researchers believe consumers are buying supplements with no evidence that they will provide any benefit.
  Harms v gains             Continue reading the main story       “Start Quote

Based on existing evidence, we see little justification for the general and widespread use of dietary supplements”

The study authors

They are quick to stress that their study relied on the 38,000 US women who took part in it recalling what vitamins and minerals they had taken over the previous two decades.

      And it is difficult to control for all other factors, like general physical health, that might have influenced the findings.
      But they say their findings suggest that supplements should only be used if there is a strong medically-based cause for doing so because of the potential to cause harm.
      "Based on existing evidence, we see little justification for the general and widespread use of dietary supplements," Dr Jaakko Mursu of the University of Eastern Finland and his research colleagues said.
  Less is more             In the study, iron tablets were strongly linked with a small (2.4%) increased death risk, as were many other supplements. The link with iron was dose-dependent, meaning the more of it the individual took, the higher their risk was.
      Continue reading the main story       “Start Quote

Too much can be toxic and it is easy to inadvertently take more than the recommended daily amount”

Helen Bond British Dietetic Association

Conversely, calcium supplements appeared to reduce death risk. However, the researchers say this finding needs more investigation and they do not recommend that people take calcium unless advised to by a doctor in order to treat a deficiency.

      Drs Christian Gluud and Goran Bjelakovic, who review research for the Cochrane Database of Systematic Reviews to evaluate best evidence, said: "We think the paradigm 'The more the better' is wrong."
      They say dietary supplementation has shifted from preventing deficiency to trying to promote wellness and prevent diseases, and caution: "We believe that for all micronutrients, risks are associated with insufficient and too-large intake."
      Helen Bond of the British Dietetic Association said some people, like the elderly, might need to take certain supplements. For example, vitamin D is recommended for people over the age of 65.
      But she said that generally, people should be able to get all the vitamins and minerals they needed from a healthy, balanced diet.
      She said some took supplements as an insurance policy, wrongly assuming that they could do no harm. "But too much can be toxic and it is easy to inadvertently take more than the recommended daily amount."

作者: 武夫的眉笔 时间: 2011-10-24 11:55:40

这是什么？这里有很多老女人么？

作者: 疼惜 时间: 2011-10-24 12:17:02

上中文。。。。。。

作者: Casalanca 时间: 2011-10-24 12:24:05

吃就死。。看还谁吃。。。

作者: 肉肉妈 时间: 2011-10-24 13:17:08

很多维生素之类的不能当饭吃的
毕竟有人工成分
人哪还是多锻炼为好，以后人们会越来越不依赖那些药，是药三分毒阿

作者: koddie 时间: 2011-10-24 13:45:19

本帖最后由 koddie 于 2011-10-24 14:46 编辑

LZ, what is your point?

Of coz, this is a no brainer, too much of a good thing is bad, regardless of gender.

作者: 萨米 时间: 2011-10-24 14:09:32

koddie 发表于 2011-10-24 14:45
LZ, what is your point?

Of coz, this is a no brainer, too much of a good thing is bad, regardless ...

it is a direct translation to a research conclusion.

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