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吃富含β－胡萝个素的食物和结肠癌发病率降低有联系，在《JournaloftheNa－tionalCancerInsti-tute》1995年第87卷上报道的Frommel等的一项研究表明：饮食中增补β－胡萝卜素似乎不能改变以前患有结肠癌或结肠息肉患者的正常结肠粘膜细胞的增生。他们认为，乡胡萝卜素可能降低
Eating foods rich in beta-carotene is linked to a reduction in the incidence of colon cancer. A study from Frommel et al. in the Journal of the Nasal Cancer Insti-tute, Vol. 87, 1995 shows that β-carrot is added to the diet. It does not seem to alter the proliferation of normal colon mucosal cells in patients with colon cancer or colon polyps. They believe that carotenoids may be reduced