Eating whole grains leads to a lower risk of a multitude of cancers, including of the stomach, liver, gall bladder, pancreas, breast, ovary and prostate, according to a study published in the International Journal of Cancer.

Researchers are still studying the link between a lower incidence of colon cancer and a high-fiber diet. A new study in the December 14,2005 issue of the Journal of the American Medical Association reported that eating a diet high in fiber does not lower a person's risk of developing colon cancer, but the study added it is still a good idea to consume fiber rich-foods anyway for overall health. Eating lots of fiber did cut the risk of rectal cancer and a high fiber diet is known to reduce the risk of heart disease and diabetes.

Additionally, it has been observed that cultures with a traditional high-fiber diet have a much lower rate of colon cancer than western cultures. This could be because fiber moves through the intestine like a broom, sweeping potential toxins out of the body more quickly, lessening their potential to be harmful. The soft and bulky stools that result from a fiber-rich diet tend to stimulate peristalsis, the involuntary muscle contractions that keep food moving through your system.

There are other components of whole grains, in addition to fiber, that appear to lead to a protective effect, including high levels of antioxidants, vitamins, minerals and phytonutrients that help prevent disease.

To benefit most from the cancer fighting potential of fiber, look for foods that are “whole grain” and make them part of your healthy routine.