María Elena Martínez, PhD

Remarkable progress has been made in recent years in our understanding of colorectal cancer etiology. The various hypotheses of causality continue to be tested in human observational and intervention studies, as well as experimental models. Drs. Garay and Engstrom provide a comprehensive review of the dietary and chemopreventive factors for colorectal cancer. While their conclusions are noteworthy, those related to dietary factors are debatable.