研究发现: 食用有机食品并不比普通食品更健康

编译

研究发现: 食用有机食品并不比普通食品更健康



最近的重要一项研究表明：和普通食品比较，所谓的有机食品并没有任何附加的营养成分或健康益处。

伦敦卫生和热带医学院的研究人员报道：消费者高价消费有机食品，是因为消费者相信，像有机食品的生产和经销者宣传的那样，食用有机食品有益身体健康。

2007年，全球性的有机食品市场价值估计为480亿美元。


但是经过系统的审查，在过去50年中，发表的162篇发表在科学文献上的论文
，有机食品和普通食品没有显著的差别。


研究人员表明： “尽管有机和常规生产的食品存在着少数成分含量差异，但这些差异都没有任何公共健康的意义和关联“。

“我们的审查表明，目前没有证据支持：选择生产食用有机食品比传统的基础食品更有营养。 ”

这项研究由英国政府的食品标准局负责实施进行的，其研究结果，发表在美国临床营养学杂志上。

有机食品的销售已在一些市场上呈下降趋势，包括英国，因为经济衰退导致消费者减少购买。

今年4月，土壤协会说，在2008英国销售的有机产品增长1.7% ，远低于过去数十年中平均年增长率26%。有机产品的需求在2008年底暴跌。





http://ca.news.yahoo.com/s/reuters/090729/science/science_us_food_organic


Organic food is no healthier, study finds

Wed Jul 29, 12:29 PM

LONDON (Reuters) - Organic food has no nutritional or health benefits over ordinary food, according to a major study published Wednesday.

Researchers from the London School of Hygiene & Tropical Medicine said consumers were paying higher prices for organic food because of its perceived health benefits, creating a global organic market worth an estimated $48 billion in 2007.

A systematic review of 162 scientific papers published in the scientific literature over the last 50 years, however, found there was no significant difference.

A small number of differences in nutrient content were found to exist between organically and conventionally produced foodstuffs, but these are unlikely to be of any public health relevance, said Alan Dangour, one of the report\'s authors.

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.

The results of research, which was commissioned by the British government\'s Food Standards Agency, were published in the American Journal of Clinical Nutrition.

Sales of organic food have fallen in some markets, including Britain, as recession has led consumers to cut back on purchases.

The Soil Association said in April that growth in sales of organic products in Britain slowed to just 1.7 percent in 2008, well below the average annual growth rate of 26 percent over the last decade, following a plunge in demand at the end of the year.

(Reporting by Ben Hirschler; editing by Simon Jessop)