Not All Dietary Fibers are Equal

A meta-analysis of 25 studies that involved almost 2 million people revealed that fiber from whole grains reduced the risk of colorectal cancer by 21% compared with fiber from fruits, vegetables, or legumes. Higher intakes showed greater risk reduction. Dietary fiber shortens stool transit times, increases stool bulk, and probably dilutes gut carcinogens, thereby lowering risk.

PositiveTip: Lower your risk of colorectal cancer by eating whole grains every day.