Colorectal Cancer

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Cause and Risk Factors



The cause of colorectal cancer is unknown. Age is the primary risk factor. Incidence of the disease increases significantly after the age of 50.




Some people have a genetic predisposition to carcinogenic (i.e., cancer causing) effects of the diet on the digestive tract, which increases the risk for colorectal cancer. When this predisposition is combined with a high dietary intake of fat and red meat and a low dietary intake of fiber (e.g., bran), vitam...Read the full article