多吃维生素D或能使人们患肠癌的风险降低三分之一
<p><span word="The">The</span> <span word="wonders">wonders</span> <span word="of">of</span> <span word="vitamin">vitamin</span> <span word="D">D</span> <span word="keep">keep</span> <span word="being">being</span> <span word="revealed">revealed</span>, <span word="and">and</span> <span word="here">here</span>'<span word="s">s</span> <span word="a">a</span> <span word="new">new</span> <span word="one">one</span> - <span word="Higher">Higher</span> <span word="levels">levels</span> <span word="of">of</span> <span word="it">it</span> <span word="cut">cut</span> <span word="colorectal">colorectal</span> <span word="cancer">cancer</span> <span word="risk">risk</span> <span word="by">by</span> <span word="a">a</span> <span word="third">third</span>, <span word="particularly">particularly</span> <span word="in">in</span> <span word="women">women</span>. <span word="The">The</span> <span word="research">research</span> <span word="this">this</span> <span word="conclusion">conclusion</span> <span word="is">is</span> <span word="based">based</span> <span word="on">on</span> <span word="is">is</span> <span word="pretty">pretty</span> <span word="robust">robust</span>, <span word="a">a</span> <span word="large">large</span> ?<span word="international">international</span> <span word="study">study</span> <span word="led">led</span> <span word="by">by</span> <span word="Harvard">Harvard</span> <span word="University">University</span>.</p><p>维生素<span word="D">D</span>的神奇作用正不断向世人展示，目前又发现了其新的功效--多吃维生素<span word="D">D</span>可使人们患结肠直肠癌的风险降低三分之一，尤其是对于女性而言。哈佛大学开展的一项大型国际研究为这一研究结论提供了强有力的依据。</p><p><span word="About">About</span> <span word="a">a</span> <span word="fifth">fifth</span> <span word="of">of</span> <span word="Britons">Britons</span> <span word="are">are</span> <span word="vitamin">vitamin</span> <span word="D">D</span> <span word="deficient">deficient</span> <span word="and">and</span> <span word="bowel">bowel</span>, <span word="or">or</span> <span word="colorectal">colorectal</span> <span word="cancer">cancer</span> <span word="rates">rates</span> <span word="are">are</span> <span word="rising">rising</span> <span word="globally">globally</span>. <span word="Are">Are</span> <span word="these">these</span> <span word="two">two</span> <span word="findings">findings</span> <span word="related">related</span>? <span word="Vitamin">Vitamin</span> <span word="D">D</span> <span word="is">is</span> <span word="hard">hard</span> <span word="to">to</span> <span word="find">find</span> <span word="in">in</span> <span word="high">high</span> <span word="concentrations">concentrations</span> <span word="in">in</span> <span word="natural">natural</span> <span word="foods">foods</span>, <span word="but">but</span> <span word="it">it</span> <span word="can">can</span> <span word="be">be</span> <span word="found">found</span> <span word="in">in</span> <span word="fatty">fatty</span> <span word="fish">fish</span> <span word="such">such</span> <span word="as">as</span> <span word="salmon">salmon</span>, <span word="cheese">cheese</span>, <span word="fortified">fortified</span> <span word="milk">milk</span> <span word="and">and</span> <span word="eggs">eggs</span>. <span word="The">The</span> <span word="vitamin">vitamin</span> <span word="has">has</span> <span word="been">been</span> <span word="found">found</span> <span word="to">to</span> <span word="strengthen">strengthen</span> <span word="resistance">resistance</span> <span word="to">to</span> <span word="stomach">stomach</span> <span word="tumours">tumours</span>, <span word="and">and</span> <span word="it">it</span> <span word="was">was</span> <span word="most">most</span> <span word="protective">protective</span> <span word="in">in</span> <span word="women">women</span>.</p><p>大约五分之一的英国人缺乏维生素<span word="D">D</span>，肠癌或结肠直肠癌的全球发病率正不断飙升。这两个发现是否存在相关性？天然食物的维生素<span word="D">D</span>含量不高，但富含脂肪的鱼（如三文鱼）、奶酪、营养强化奶和鸡蛋中却含有高浓度的维生素<span word="D">D</span>。维生素<span word="D">D</span>已被发现能增强人们对胃肿瘤的抵抗力，尤其能保护女性。</p>
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