推荐回答(5个)
虽然现在人一谈癌就色变,但很多人却并不重视生活中的致癌诱因,比如一些致癌食物。这里答主就给大家介绍一些容易致癌的食物,平时一定要多注意哦。
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油炸食品
经过高温油炸的食物会产生致癌物质多环芳烃,尤其是烧焦的食物,如果长期饮用,致癌物质在体内长期积累,就容易诱发癌症。苯并芘主要是煤、天然气等燃烧过程中产生,脂肪、胆固醇等在高温下也可形成苯并芘,如腊肠、熏鱼中苯并芘含量可比普通肉高60倍。
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腌制食品
在中国很多人,喜欢吃腌制的咸菜,咸蛋等,这些食物都容易产生致癌物--亚硝酸盐,新腌制的咸菜中其含量更高。除此之外亚硝胺类的致癌物,还普遍存在于谷物、牛奶、干酪、烟酒、熏肉、烤肉、海鱼、罐装食品以及饮水中。
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霉变物质
在我们身边有些食物特别容易霉变,比如大米、玉米、核桃、花生等,而很多人却疏忽大意,常有误食的情况,而这恰恰让霉变食物中的致癌物质-黄曲霉毒素有了可乘之机。“黄曲霉毒素”这种可怕致癌物质,它的毒性比砒霜可是要厉害多了!
因此对以上容易产生致癌的食物,平时一定要多加留意,以避免恶性肿瘤的产生。
一、腌制类食物 、加工肉类
农村每逢过年之前,家家户户都会腌制大量的咸鱼、咸肉。这类食物致癌的隐患主要来自于腌菜过程中产生的亚硝酸盐和在肉类食物加工过程中以添加剂的形式、作为增色和延长保持期使用的亚硝酸盐。亚硝酸盐会与蛋白质食物代谢产物胺类物质结合,形成亚硝酸胺、亚硝酰胺。而亚硝酸胺、亚硝酰胺是一级致癌物。长期食物这类食物容易产生食管癌、胃癌、肠癌等消化系统癌症。对于腌菜一定要在腌制21天后食物,这时的亚硝酸盐的含量最低。通常是3~5天亚硝酸盐的浓度最高,而后随着时间的增加亚硝酸盐的浓度逐渐降低,到21天后降低最低。虽然21天后腌菜的亚硝酸盐的危害减少了,但高盐饮食作为B级致癌物要少吃或不吃。加工肉类的危害主要来自于作为增色和延长保持期使用的亚硝酸钠。因为世卫组织WHO建议,少或不吃加工肉类。这些食物里面含有大量的亚硝酸盐,吃进胃里就会转变为亚硝酸铵,而这种化学物质就会导致癌症的发生。腌制的咸鸭蛋、咸菜、萝卜干之类的食物也应尽量少吃,同样会产生致癌物质。
一、腌制类食物 、加工肉类
二、烧烤类食物
三、油炸类食物
四、霉变类食物
五、隔夜后的食物
除上述二者最主要的食品外,生活中最常见与致癌有关的饮食偏嗜还有:
1、酗酒、长期食用腌制、熏制及油炸食品等,与胃癌的发病有着较为密切的关系,这些不良饮食嗜好,能导致胃黏膜的破坏,慢性炎症形成,以至于发展成为萎缩性胃炎、肠上皮化生,甚至是胃癌。
2、长期接触黄曲霉素,如长时间摄入霉变的食物,能够增加肝癌的发病风险。黄曲霉素是除慢性乙肝以外,导致肝细胞癌变的第二大因素。
3、嗜食干硬食物,长期进食过烫食品、腌制食物、饮酒等能增加食管癌的发病风险。这些偏嗜饮食长期作用于食管粘膜,能导致食管粘膜的慢性炎症,从而增加了癌变的风险。
4、高脂肪、低纤维素饮食也是大肠癌的发病因素,长期进食动物性食品,而稀少进食蔬菜水果、杂粮等植物性食品的人群,患大肠癌的风险要高很多。
总之,不良饮食偏嗜与癌症的发病关系,主要以消化系统肿瘤为主,生活中注意饮食结构,均衡饮食,多摄入蔬菜水果等,就能起到良好的预防作用。当然,癌症的发生是一个多因素共同作用的结果,除了上述饮食注意外,生活规律、注意锻炼身体,戒烟、限酒,洁身自好等,都是从预防癌症的基本措施。
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