Organic 'has no health benefits' 有机食品“对健康无更多益处
文章来源:未知 文章作者:meng 发布时间:2009-07-30 03:30 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

Organic food is no healthier than ordinary food, a large independent review has concluded.

一项大的独立审查得出结论,有机食品并不比普通食品更健康。

More than 50 studies were included in the review
More than 50 studies were included in the review

There is little difference in nutritional1 value and no evidence of any extra health benefits from eating organic produce, UK researchers found.

The Food Standards Agency who commissioned the report said the findings would help people make an "informed choice".

But the Soil Association criticised the study and called for better research.

Researchers from the London School of Hygiene3 and Tropical Medicine looked at all the evidence on nutrition and health benefits from the past 50 years.

Among the 55 of 162 studies that were included in the final analysis, there were a small number of differences in nutrition between organic and conventionally produced food but not large enough to be of any public health relevance4, said study leader Dr Alan Dangour.

Overall the report, which is published in the American Journal of Clinical Nutrition, found no differences in most nutrients5 in organically or conventionally grown crops, including in vitamin C, calcium6, and iron.

The same was true for studies looking at meat, dairy and eggs.

Differences that were detected, for example in levels of nitrogen(氮) and phosphorus(磷), were most likely to be due to differences in fertilizer use and ripeness at harvest and are unlikely to provide any health benefit, the report concluded.

Gill Fine, FSA director of consumer choice and dietary health, said: "Ensuring people have accurate information is absolutely essential in allowing us all to make informed choices about the food we eat.

"This study does not mean that people should not eat organic food.

"What it shows is that there is little, if any, nutritional difference between organic and conventionally produced food and that there is no evidence of additional health benefits from eating organic food."

She added that the FSA was neither pro2 nor anti organic food and recognised there were many reasons why people choose to eat organic, including animal welfare or environmental concerns.

Dr Dangour, said: "Our review indicates that there is currently no evidence to support the selection of organically over conventionally produced foods on the basis of nutritional superiority(优越性,优势)."

He added that better quality studies were needed.

Peter Melchett, policy director at the Soil Association said they were disappointed with the conclusions.

"The review rejected almost all of the existing studies of comparisons between organic and non-organic nutritional differences.

"Although the researchers say that the differences between organic and non-organic food are not 'important', due to the relatively7 few studies, they report in their analysis that there are higher levels of beneficial nutrients in organic compared to non-organic foods.

"Without large-scale, longitudinal research(纵向研究) it is difficult to come to far-reaching clear conclusions on this, which was acknowledged by the authors of the FSA review.

"Also, there is not sufficient research on the long-term effects of pesticides8(杀虫剂) on human health," he added.



点击收听单词发音收听单词发音  

1 nutritional 4HRxN     
adj.营养的,滋养的
参考例句:
  • A diet lacking in nutritional value will not keep a person healthy.缺乏营养价值的饮食不能维持人的健康。
  • The labels on food products give a lot of information about their nutritional content.食品上的标签提供很多关于营养成分的信息。
2 pro tk3zvX     
n.赞成,赞成的意见,赞成者
参考例句:
  • The two debating teams argued the question pro and con.辩论的两组从赞成与反对两方面辩这一问题。
  • Are you pro or con nuclear disarmament?你是赞成还是反对核裁军?
3 hygiene Kchzr     
n.健康法,卫生学 (a.hygienic)
参考例句:
  • Their course of study includes elementary hygiene and medical theory.他们的课程包括基础卫生学和医疗知识。
  • He's going to give us a lecture on public hygiene.他要给我们作关于公共卫生方面的报告。
4 relevance gVAxg     
n.中肯,适当,关联,相关性
参考例句:
  • Politicians' private lives have no relevance to their public roles.政治家的私生活与他们的公众角色不相关。
  • Her ideas have lost all relevance to the modern world.她的想法与现代社会完全脱节。
5 nutrients 6a1e1ed248a3ac49744c39cc962fb607     
n.(食品或化学品)营养物,营养品( nutrient的名词复数 )
参考例句:
  • a lack of essential nutrients 基本营养的缺乏
  • Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》
6 calcium sNdzY     
n.钙(化学符号Ca)
参考例句:
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
7 relatively bkqzS3     
adv.比较...地,相对地
参考例句:
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
8 pesticides abb0488ed6905584ea91347395a890e8     
n.杀虫剂( pesticide的名词复数 );除害药物
参考例句:
  • vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
  • There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》
TAG标签: health organic benefit
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