JAMA Intern Med:常吃有机食物能降低患癌几率吗?

2018-10-24 佚名 生物探索

随着生活水平的提高,人们非常在意食品安全问题,所以,有机食物受到越来越多人的青睐,那么常吃有机食物会降低癌症等疾病的发病率吗?最新一项研究表明:多花些钱购买昂贵的有机水果和蔬菜可能会有回报——帮助你降低患癌症的风险。

研究结果以“Association of Frequency of Organic Food Consumption With Cancer Risk”为题发表在《JAMA Intern Med.》杂志上。

研究发现,与那些吃有机食品最少的人相比,吃的多的患癌症的风险要低25%。

首席研究员、法国巴黎索邦大学研究中心、流行病学和统计中心的科学家Julia Baudry说:“具体来说,多吃有机食品与绝经后乳腺癌的发病率降低34%,所有淋巴瘤发病率降低76%,非霍奇金淋巴瘤发病率降低86%有关。”

Julia Baudry表示::“如果我们的发现得到证实,那么有机食品消费或许有助于癌症预防,尽管研究没有证明它们直接导致癌症风险下降。”

Julia Baudry和其他专家表示,在饮食中添加水果盒蔬菜可以降低患慢性病和癌症的风险,无论它们是不是有机食品。

美国癌症协会(American Cancer Society)的博士后Mark Guinter说:“最重要的是确保你食用水果和蔬菜,避免食用红色和加工过的肉类,食用全谷物。”

在这项研究中,Julia Baudry和她的同事分析了将近69000人的数据,这些人参加了法国一项正在进行的关于营养和健康之间联系的研究。参与者都填写了关于他们有机产品消费情况,这些包括水果和蔬菜,奶制品,肉类和鱼类,鸡蛋,面包和其他食物。此外,参与者还填写了关于健康状况的年度问卷,包括癌症病例,并平均随访时间为4.5年。

研究人员发现,食用有机食品与降低癌症风险之间存在联系,即使考虑了其他致癌因素。

Julia Baudry说:“我们的确考虑了各种可能与这种关系有关的因素,如社会人口、社会经济和生活方式等因素,以及癌症家族史,或者在营养和食物消费方面更健康的饮食习惯。”控制这些因素并没有显着改变研究结果。

有机食品是在没有杀虫剂、化肥和其他化学物质的情况下种植的。研究表明,食用有机食品的人尿液中的农药残留水平较低。

在以前的研究中,“接触农药与更高的癌症风险有关”。Baudry说道。

这项研究支持了英国一项研究的结果,该研究还发现了有机食品的摄入与非霍奇金淋巴瘤低风险之间的联系。

哈佛大学陈曾熙公共卫生学院(Harvard T.H. Chan School of Public Health)营养系主任Frank Hu博士表示,动物研究表明,杀虫剂会增加DNA损伤,从而增加患癌症的风险。化学物质也会破坏内分泌系统。目前还没有足够的人类证据来支持新的饮食建议。

不过基本上,增加水果和蔬菜的摄入,无论是传统的还是有机的,都可以提高整体的饮食质量,降低患包括癌症在内的慢性病的风险。为了预防癌症,人们应该正确饮食,通过饮食和锻炼保持健康的体重。减少饮酒也会有帮助。

原始出处:

Julia Baudry, et al. Association of Frequency of Organic Food Consumption With Cancer Risk Findings From the NutriNet-Santé Prospective Cohort Study. JAMA Intern Med. Published online October 22, 2018. doi:10.1001/jamainternmed.2018.4357

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    2018-10-26 yhy100201
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    2018-10-26 lq0307
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    2018-10-24 lietome15

    认真学习,不断进步,把经验分享给同好。点赞了!

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