University of Minnesota School

"The recommendations to consume an abundance of fiber-rich foods to prevent coronary heart disease are based on a wealth of consistent scientific evidence," state University of Minnesota School of Public Health's Dr. Mark Pereira and colleagues.

Researchers did not identify a specific protective mechanism, although the study noted fiber has been shown to reduce risk of heart disease in many ways, such as by improving blood-lipid profiles, lowering blood pressure and improving insulin sensitivity.