認知正負相關食物可防癌，剩下的你就自己看吧！


認知正負相關食物可防癌，剩下的你就自己看吧！




所謂正負相關食物，指的是人類在進食食物後，是有利癌的生長還是抑制癌的生長而言。
凡是對人類有致癌或促癌的食物，叫做正相關食物。比如，鹹菜、泡菜、酸菜、鹹魚、豆瓣醬、炸薰醃肉類、發酵黃豆、黴花生、香料、食用染色劑、被汙染的水質等。



相反的，凡是對人類具有抗癌，抑致癌或對人類有保護性的食物，叫做負相關食物。它



包括如下三方面的食物：



①動物性蛋白質。如肉類、蛋類、鮮魚、乳製品等。
②富含維生素A、C、E的食物。也就是新鮮蔬菜、水果，尤以黃綠色者為佳。如萵苣、番茄、菠菜、捲心菜、橘子、西瓜、柿子、檸檬等。
③含多糖類食物。如新鮮蘑菇、香菇等。




在正相關食物中，一般都含有大量的亞硝酸鹽和3，4苯丙芘等化學致癌物，它們易於誘發食道癌、胃癌肝癌、結腸癌和直腸癌的發生。而負相關食物多含維生素A、C、E和多糖類等物質，它們能增強機體的抗癌力，同時又能抑制致癌物質的形成和活化。比如，維生素C有使細胞間質緻密，使致癌物質難以對組織產生損傷，並能抑制亞硝酸鹽與二級胺的合成。所以，負相關食物具有保護機體，抑制癌形成的作用。



因此，日常飲食中應該多食用負相關食物，而避免正相關食物，對預防癌症的發生大有裨益。
 












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