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托福听力练习-科学美国人60秒:有机食品健康吗

2017-04-01 16:24:00来源：科学美国人60秒

点击查看>>科学美国人60秒音频：有机食品健康吗

　　科学美国人60秒听力练习：有机食品健康吗

　　科学美国人60秒英文文本

　　Organic food options are often a pretty penny more than their conventionally produced counterparts. And they have often been touted as better for you as well as the environment.

　　But if you're looking for extra nutrients you might not be getting them, according to a new review paper in Annals of Internal Medicine.

　　Researchers analyzed results from 237 strong studies looking for health differences between the two types of food—and didn't find much.

　　Only 17 of the studies were in humans, and they did not include any long-term follow-ups of their subjects.

　　One study did find that children on an organic diet had smaller traces of pesticides in their bodies. And although pesticide amounts were below current acceptable U.S. levels, many health experts contest that pesticide exposure limits are still too high.

　　Organic methods might also cut down on antibiotic-resistant bacteria.

　　So going organic might be more a personal choice about supporting that form of farming than about specific health benefits. And the most important health choice, it seems, is to stop dallying over produce labels and just eat it—at least five servings a day.

　　中文翻译请点击下一页

本文关键字: 托福听力 科学美国人

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