Been H. Chiang, director of Taiwan National University's Graduate Institute of Food Science and Technology, points out that fiber in food can absorb cancer-causing agents and shorten the time that digested food passes through the large intestine. It is indeed effective in protecting the large intestine from cancer.
台灣大學食品科技研究所教授兼所長蔣丙煌指出，食物纖維能吸附致癌物質，縮短糞便通過大腸的時間，確實有預防大腸癌發生的功效。