有机食品真的更健康吗?
<p><span word="Is">Is</span> <span word="organic">organic</span> <span word="food">food</span> <span word="really">really</span> <span word="healthier">healthier</span>?</p><p>有机食品真的更健康吗?</p><p><span word="Organic">Organic</span> <span word="food">food</span> <span word="is">is</span> <span word="more">more</span> <span word="than">than</span> <span word="just">just</span> <span word="a">a</span> <span word="passing">passing</span> <span word="fad">fad</span>. <span word="Organic">Organic</span> <span word="food">food</span> <span word="sales">sales</span> <span word="totaled">totaled</span> <span word="a">a</span> <span word="record">record</span> <span word="US">US</span>$45.2 <span word="billion">billion</span> <span word="in">in</span> 2017, <span word="making">making</span> <span word="it">it</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="fastest">fastest</span>-<span word="growing">growing</span> <span word="segments">segments</span> <span word="of">of</span> <span word="American">American</span> <span word="agriculture">agriculture</span>. <span word="While">While</span> <span word="a">a</span> <span word="small">small</span> <span word="number">number</span> <span word="of">of</span> <span word="studies">studies</span> <span word="have">have</span> <span word="shown">shown</span> <span word="associations">associations</span> <span word="between">between</span> <span word="organic">organic</span> <span word="food">food</span> <span word="consumption">consumption</span> <span word="and">and</span> <span word="decreased">decreased</span> <span word="incidence">incidence</span> <span word="of">of</span> <span word="disease">disease</span>, <span word="no">no</span> <span word="studies">studies</span> <span word="to">to</span> <span word="date">date</span> <span word="have">have</span> <span word="been">been</span> <span word="designed">designed</span> <span word="to">to</span> <span word="answer">answer</span> <span word="the">the</span> <span word="question">question</span> <span word="of">of</span> <span word="whether">whether</span> <span word="organic">organic</span> <span word="food">food</span> <span word="consumption">consumption</span> <span word="causes">causes</span> <span word="an">an</span> <span word="improvement">improvement</span> <span word="in">in</span> <span word="health">health</span>.</p><p>有机食品可不仅仅是一时风尚。2017年，其销售总额创下历史新高——452亿美元，成为美国农业增长最快的部分之一。虽然少数研究已表明食用有机食品和疾病发病率降低存在联系，但尚未有研究对如下问题做出解答：食用有机食品是否会让人更健康？</p><p><span word="I">I</span>’<span word="m">m</span> <span word="an">an</span> <span word="environmental">environmental</span> <span word="health">health</span> <span word="scientist">scientist</span> <span word="who">who</span> <span word="has">has</span> <span word="spent">spent</span> <span word="over">over</span> 20 <span word="years">years</span> <span word="studying">studying</span> <span word="pesticide">pesticide</span> <span word="exposures">exposures</span> <span word="in">in</span> <span word="human">human</span> <span word="populations">populations</span>. <span word="Last">Last</span> <span word="month">month</span>, <span word="my">my</span> <span word="research">research</span> <span word="group">group</span> <span word="published">published</span> <span word="a">a</span> <span word="small">small</span> <span word="study">study</span> <span word="that">that</span> <span word="I">I</span> <span word="believe">believe</span> <span word="suggests">suggests</span> <span word="a">a</span> <span word="path">path</span> <span word="forward">forward</span> <span word="to">to</span> <span word="answering">answering</span> <span word="the">the</span> <span word="question">question</span> <span word="of">of</span> <span word="whether">whether</span> <span word="eating">eating</span> <span word="organic">organic</span> <span word="food">food</span> <span word="actually">actually</span> <span word="improves">improves</span> <span word="health">health</span>.</p><p>我是一名环境健康科学家，过去二十年一直都在研究人类接触农药的情况。上个月，我的研究团队发表了一篇小型研究，我认为这项研究为上述问题提供了前进方向。</p><p><span word="According">According</span> <span word="to">to</span> <span word="the">the</span> <span word="USDA">USDA</span>, <span word="the">the</span> <span word="organic">organic</span> <span word="label">label</span> <span word="does">does</span> <span word="not">not</span> <span word="imply">imply</span> <span word="anything">anything</span> <span word="about">about</span> <span word="health">health</span>. <span word="In">In</span> 2017, <span word="Miles">Miles</span> <span word="McEvoy">McEvoy</span>, <span word="then">then</span> <span word="chief">chief</span> <span word="of">of</span> <span word="the">the</span> <span word="National">National</span> <span word="Organic">Organic</span> <span word="Program">Program</span> <span word="for">for</span> <span word="USDA">USDA</span>, <span word="refused">refused</span> <span word="to">to</span> <span word="speculate">speculate</span> <span word="about">about</span> <span word="any">any</span> <span word="health">health</span> <span word="benefits">benefits</span> <span word="of">of</span> <span word="organic">organic</span> <span word="food">food</span>, <span word="saying">saying</span> <span word="the">the</span> <span word="question">question</span> <span word="wasn">wasn</span>'<span word="t">t</span> "<span word="relevant">relevant</span>" <span word="to">to</span> <span word="the">the</span> <span word="National">National</span> <span word="Organic">Organic</span> <span word="Program">Program</span>. <span word="Instead">Instead</span>, <span word="the">the</span> <span word="USDA">USDA</span>'<span word="s">s</span> <span word="definition">definition</span> <span word="of">of</span> <span word="organic">organic</span> <span word="is">is</span> <span word="intended">intended</span> <span word="to">to</span> <span word="indicate">indicate</span> <span word="a">a</span> <span word="production">production</span> <span word="method">method</span> <span word="that">that</span> "<span word="foster">foster</span> <span word="cycling">cycling</span> <span word="of">of</span> <span word="resources">resources</span>, <span word="promote">promote</span> <span word="ecological">ecological</span> <span word="balance">balance</span>, <span word="and">and</span> <span word="conserve">conserve</span> <span word="biodiversity">biodiversity</span>."</p>
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