Doyle Veronica Castillo
City of Hope, Duarte, California, USA.
Gastroenterol Nurs. 2007 May-Jun;30(3):178-82; quiz 182-3. doi: 10.1097/01.SGA.0000278165.05435.c0.
Though no one knows why one person gets cancer and another does not, there are ways to decrease the chances of getting cancer. In the case of colorectal cancers, diet may be a preventative factor. The objective of this literature review was to determine whether a person's nutritional diet has an effect on his or her risk of getting colorectal cancer. Studies done by a number of researchers on the correlation between colorectal cancer risk and diet were reviewed. Research papers investigating dietary patterns and colorectal cancer incidence were examined. A synthesis of this literature suggests a diet high in red meat and fat may increase a person's risk of getting colorectal cancer. Contrary to previous recommendations, there is no strong evidence to suggest that fiber intake (including more fruits and vegetables) has any effect on colorectal cancer risk.
虽然没人知道为什么有的人会患癌症而有的人不会，但有一些方法可以降低患癌几率。就结直肠癌而言，饮食可能是一个预防因素。这篇文献综述的目的是确定一个人的营养饮食是否会对其患结直肠癌的风险产生影响。回顾了许多研究人员关于结直肠癌风险与饮食之间相关性的研究。研究了调查饮食模式与结直肠癌发病率的研究论文。对这些文献的综合分析表明，富含红肉和脂肪的饮食可能会增加一个人患结直肠癌的风险。与之前的建议相反，没有有力证据表明纤维摄入量（包括更多水果和蔬菜）对结直肠癌风险有任何影响。
