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Relation of meat, fat and fiber intake to the risk of colon cancer in a prospective study of women

Study shows women who eat beef, pork or lamb everyday have a 149% higher risk of developing colon cancer, compared to those consuming these products less than once a month

Method
Prospective study amongst 88751 women without evidence of cancer, who completed a dietary questionaire in 1980. By 1986, 150 cases of colon cancer were documented.
Results
Relative risk for the highest qunitile of animal fat consumption, relative to the lowest quintile was 1.89 (95% confidence interval, 1.13 to 3.15). Relative risk of colon cancer in women who ate beef, pork or lamb everyday was 2.49 as compared to those reporting consumption less than once a month.