5Obesity & Inappropriate Diet
Obesity could trigger many diseases, and colorectal cancer is one of them. Obese people tend to have a higher insulin level, and insulin stimulates colon/rectal cells to grow irregularly, leading to tumors ultimately. According to the statistics published by the National Cancer Institute, obesity increases the risk of developing colorectal cancer by 30%.
Some evidence shows that poor diet contributes to the development of colorectal cancer as well. Consumption of high saturated animal fats from red meats and processed meats elevates the risk of having colorectal cancer, but the mechanism is still unknown. Consumption of high-fiber foods such as avocados, bananas, carrots, beets, broccoli, and Brussels sprouts is proven useful against colorectal cancer. Fiber-rich foods help solidify your stool and increase its size. Soluble fibers promote the metabolism of carcinogens in the colon, while insoluble fibers dilute carcinogens, thus reduce the risk. [5]
