繼之前喝咖啡可以降低肝癌風險以後,又有新聞討論關於喝咖啡可以講低大腸癌風險,感覺上好像喝咖啡真是無敵了咧….這到底是怎麼回事呢?

在這一篇號稱咖啡可以降低大腸癌風險的醫學報告中,一開頭就告訴我們,一天一到兩杯的咖啡可能降低大腸癌風險。這項研究主要是在以色列收集近八千五百人參加,其中包含五千名已經罹患大腸癌患者與三千五百名健康民眾。

Drinking just one to two cups of coffee a day may reduce the risk of colon cancer, a new study suggests.

Researchers examined coffee consumption among nearly 8,500 people in Israel, including about 5,000 who had colorectal cancerand 3,500 who did not have cancer. On average, the people in the study drank just less than two cups of coffee per day.

 

相對於那些每天喝不到一杯咖啡的人,那些每天喝一兩杯咖啡的人在罹患大腸癌的機率可以低22%。如果對比每天喝到兩杯半咖啡的人,可以低到44%。(難道那個便利商店推出第二杯半價居然是配合醫學報告的嗎?)如果一天喝到兩杯半以上,甚至可以降低機率到59%以上。(政府應該出面讓便利商店,第三杯咖啡免費才對)

Compared with the risk for people who drank less than one cup of coffee per day, the odds of developing colorectal cancer were 22 percent lower for people who drank one to two cups a day, 44 percent lower for those who drank two to two-and-a-half cups a day and 59 percent lower for those who drank more than two-and-a-half cups per day.

為何會有這樣的結果,推測是喝咖啡可以讓腸胃中的食物或者有毒物質快速通過結腸,讓組織接觸致癌物的時間縮短,自然罹癌機率會縮短。另外也可以因為咖啡影響腸道中的微生物而產生了變化,或者咖啡本身的物質引起,目前不得而知。

It’s been hypothesized that drinking coffee may lower colorectal-cancer risk by speeding up the passage of substances through the colon, meaning the tissue has less time to be exposed to potential cancer-causing agents. It’s also possible that drinking coffee affects the composition of microbes in the gut, or that compounds in coffee have cancer-preventing properties.

這篇報告是發表在美國癌症年會,不知道這種報告可信度多少?

延伸閱讀:大腸癌的治療腸癌患者暴增大腸水療的謬誤

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