People who eat high fiber tend to have a healthier lifestyle and a more healthy diet. Those things together may reduce the risk of colon cancer.

There is still a controversy. We need to look into more specifics, like the types of fibers people eat, the sources of fiber and whether people with certain characteristics may have some benefit.

It's still important to eat a high-fiber diet. Even though our study didn't find a reduction for colorectal cancer, other studies show that high-fiber diets reduce the risk of heart disease and diabetes.