新奇事件簿 有機(jī)食品營(yíng)養(yǎng)價(jià)值更高嗎

00:00

00:00

MP3下載 文本下載

https://online2.tingclass.net/lesson/shi0529/10000/10315/467.mp3

https://image.tingclass.net/statics/js/2012

Scientists have revealed that organic and non-organic food contain pretty much the same amounts and kinds of vitamins and other nutrients. This might be surprising news for those of us who choose to buy organic believing it to be healthier. Researchers from America's Stanford University concluded that there might not be any extra health benefits to buying organic, thus people might be better off saving their money and buying non-organic produce. Lead researcher Dr Crystal Smith-Spangle said there was no difference in the vitamin content in fruit, vegetables, meat and dairy products in organically- and conventionally-produced food. She said the only difference was slightly more phosphorus in the organic products.

科學(xué)家發(fā)現(xiàn)，有機(jī)和無(wú)機(jī)食物的維他命及其它營(yíng)養(yǎng)成分含量幾乎相同。對(duì)于相信有機(jī)更健康的顧客而言，這無(wú)疑是個(gè)驚天消息。斯坦福大學(xué)研究人員表示，有機(jī)食品無(wú)任何額外營(yíng)養(yǎng)成分，顧客可以省錢(qián)購(gòu)買(mǎi)非有機(jī)食品。研究主任克麗絲特爾·史密斯-斯潘格表示，不管是有機(jī)還是傳統(tǒng)食品，乳制品、水果肉類中的維他命含量無(wú)區(qū)別。稱除了有機(jī)中的磷會(huì)略多一點(diǎn)，其它沒(méi)有差別。

Dr Smith-Spangle's review of over 200 different reports on organic food suggests people should perhaps revise their shopping choices, based on the levels of pesticides. Smith Spangler said both organic and conventional foods rarely exceeded the allowable limits for pesticides in the USA. She said the evidence wasn't too clear on whether the difference in pesticides would have an effect on health. She concluded by saying consumers should know there is overwhelming evidence that eating fruit and vegetables is good for your health, so people should eat more fresh produce, whether it is organic or conventional. Organic foods accounted for $31 billion in sales in the USA last year, up from $3.6 billion in 1997.

史密斯-斯潘格博士對(duì)200多種有機(jī)食品進(jìn)行了研究，她建議人們根據(jù)殺蟲(chóng)劑水平調(diào)整購(gòu)物選擇。她稱不管是有機(jī)還是傳統(tǒng)，殺蟲(chóng)劑使用水平幾乎不會(huì)超過(guò)美國(guó)規(guī)定的限定量。關(guān)于殺蟲(chóng)劑使用量會(huì)影響食品健康，目前尚無(wú)有力證據(jù)證明。她總結(jié)道，有大量證據(jù)表明多吃水果和蔬菜對(duì)身體有益，所以不管是有機(jī)還是傳統(tǒng)，應(yīng)多吃新鮮食物。去年全美有機(jī)銷售額為310億美金，比1997年增長(zhǎng)36億美金。