Risks of colorectal cancer from food fats

The German study indicates that the Western diet, high in fats and especially fast food, increases the risk of developing colon and rectal cancer. Researchers found that fatty foods stimulate the liver to produce secondary bile acids such as deoxycholic acid, which promote tumor growth by increasing intestinal cell division. Experiments on laboratory mice showed that the presence of these acids in the intestines leads to larger tumors that grow more quickly, with a higher rate of cell division. Additionally, analyses of human stool samples revealed that bacteria producing this acid are more prevalent among those with colon cancer, supporting the hypothesis that bacteria and bile acids play a role in the disease's development. Experts recommend prevention through adopting a balanced diet, reducing fatty foods, and increasing intake of fibers and vegetables to decrease the production of harmful bile acids and lower the risk of colon cancer.

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