推荐回答(5个)
很多人都说吃腊肉容易致癌,为什么会这样呢?
腊肉是用盐和少量亚硝酸钠或硝酸钠、黑胡椒、丁香、香叶、茴香等香料腌渍,再经风干或熏制而成,会出现亚硝酸盐含量超标的现象,过量食用亚硝酸盐就可能在人体内产生亚硝胺,此物质对人体具有致癌作用,易引起胃癌、食管癌、肠癌等。
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因此我国食品卫生标准规定,腌肉、腊肉、火腿、腊肠等凡加入亚硝酸盐的,其肉内的残留量不得超过20毫克/千克(最大剂量)。
腊肉由五花肉制作而成,好吃开胃,但是油脂含量高,长期服用容易引发血脂升高,肥胖,冠心病等疾病,所以有血脂异常的人群或者老年人群要少吃。
癌症研究机构发布报告,把火腿、香肠等加工肉制品列为致癌物,同时说食用红肉也“可能”致癌。腊肉是腌制食品,肠胃较弱的人最好不要食用,会对身体和肠胃造成负担,还含有较多的脂肪酸和胆固醇,其次腊肉在加工和腌制的过程中都放入了大量的盐。
这些盐会转化为对人体有害的亚硝酸盐,特别是在腌制的前三周内,含量最高,此时千万不能吃,有些还在里面添加了不利人体健康的防腐剂等,这些大量的亚硝酸盐,是重要的致癌物质。
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为保持新鲜的口感,腊肉在加工和腌制的过程中都放入了大量的盐。这些盐会转化为亚硝酸盐,亚硝酸盐是人体的致癌因素,很多爱吃腌肉的地区同时也是胃癌高发的地区。
腊肉腊肠这些腌制或熏烤过的食物中,会含有致癌物苯并芘和亚硝酸盐等,常吃的话易患消化道癌症,如食道癌和胃癌等。
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所以这些食物只能作为佐餐食用,千万不要因为好吃就过量食用。在腌制腊肉腊肠的过程中,为防止肉类腐败,我们都要加入大量的食盐,这样,在食用的时候就很容易盐摄入超标。冬季本来就是高血压的高发季,如再食用大量腌制品,就会加重血压状况,所以不建议中老年人及血压异常患者食用。
腊肉吃多,致癌的说法是有一定依据的,腊肉是一种经过熏制加工成的食品,偶尔食用并不会导致癌症的发生,但是如果长期、大量食用,则有可能导致癌症的发病风险增加。
这是因为腊肉中含有亚硝酸盐等物质,这些物质具有一定致癌风险,如果长期食用会导致胃癌、肠癌等癌症疾病的发病风险明显增加,而且很多腊肉都是经过熏烤加工而成,食品在熏烤的过程中极容易产生苯丙比等有致癌性的化合物。
如果长期食用腊肉就会导致这些有毒化学物质摄入体内,从而导致癌症的发生。因此腊肉可以适量食用,但不易长期、大量食用,从而增加消化道癌症的发生风险。
此外,腌制类食物,隔夜食物也有可能导致亚硝胺等化合物的生成,同样可以导致癌症的发病风险增加,因此临床上,为降低癌症的发病风险,饮食需要做好调理,减少腌制类食物、隔夜食物的过量长期摄入,而应该增加一些新鲜蔬菜、水果等食物摄入。
因为腊肉是熏熟的,而且存放的环境不太卫生。腊肉不是新鲜的肉,它是由多种肉类混合在一起的,而且里面没有放保鲜剂,容易变质,变质就会产生一些有害物质从而致癌。
腊肉在腌制过程中会产生亚硝酸盐,能让肉色保持鲜红亮丽,因此腊肉生产者也会人为添加少量亚硝酸盐。亚硝酸盐进入人体内后会转变为亚硝胺,是一种强致癌物质,对胃癌、食管癌、大肠癌等消化道癌症都有致病风险。
高含盐量的食物会对肾脏造成较大负担。腊肉中亚硝酸盐含量高,可能致癌,脂肪约占50%,其胆固醇含量也很高,这些都对身体不利。
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