AHA强烈驳斥Lancet“低盐增加心血管病风险”文章:这种说法站不住脚

2016-06-01 佚名 中国循环杂志

Lancet近期一项研究显示,对正常人而言,低盐饮食反而提高罹患高血压的风险。 研究对4项相关大规模研究、包括49个国家13万人进行分析,计算了每日尿钠和心血管病发病的相关性,结果发现,研究者认为,如果没有高血压,如果食钠不足3 g/d,心血管病的风险反而增加26%。 美国心脏协会(AHA)则强烈驳斥了该论文所持的观点。 AHA认为,该协会正致力维护美国公众健康,限盐

Lancet近期一项研究显示,对正常人而言,低盐饮食反而提高罹患高血压的风险。
 
研究对4项相关大规模研究、包括49个国家13万人进行分析,计算了每日尿钠和心血管病发病的相关性,结果发现,研究者认为,如果没有高血压,如果食钠不足3 g/d,心血管病的风险反而增加26%。
 
美国心脏协会(AHA)则强烈驳斥了该论文所持的观点。
 
AHA认为,该协会正致力维护美国公众健康,限盐是其中的一项重要承诺。
 
AHA旗帜鲜明的表示,三分之一的美国人有高血压,90%的美国人在一生中将发生高血压,与高血压密切相关的心脏病和中风是全球主要死亡原因。
 
AHA主席说,该研究的发现根本站不住脚(not valid),并强烈反对文中所持的观点,“大量的研究表明,饮食中过量的钠盐可导致高血压、心脏病、中风,甚至死亡的风险。”
 
AHA认为,研究中,低钠饮食与心血管疾病风险仅仅是一种相关关系,并非因果关系。低钠饮食的人心血管风险高,究竟是主动吃钠少的人,还是因其他疾病饮食差不得而知。
 
另外,该研究采用点尿钠来估计的方法学也有一定问题,这种一次采集尿样的方法估算24小时尿钠排泄量有很大的局限性。
 
由于传统文化与饮食习惯的关系,中国人群食盐摄入量普遍偏高,平均食盐摄入量为12.1 g/d,远高于世界卫生组织(WHO)的推荐量(小于5 g/d)。
 
北方人群食盐摄入量每人每天约12 g-18g,南方为7 g-8 g。中国高血压指南建议,北方首先将每人每日平均食盐量降至8 g,以后再降至6 g;南方可控制在6g以下。
 
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    2016-06-17 howi
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    2016-09-11 1e10c84am36(暂无匿称)

    己拜读,受益匪浅

    0

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    2016-06-03 zhaohui6731
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    2016-06-01 沉心多思

    加油……

    0

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