Yes, it is true that insoluble fiber in foods, especially plant sources, can decrease the risk of colorectal cancer. Insoluble fiber does not break down in the intestines and helps to add bulk to the stool, promoting regular bowel movements and preventing constipation. This helps to decrease the exposure of the intestinal lining to potential carcinogens and reduces the risk of developing colorectal cancer. Additionally, insoluble fiber can also help to maintain a healthy balance of gut bacteria, which further contributes to a reduced risk of colorectal cancer.
