Japan's unusually low mortality rate from coronary heart disease may be tied to the large amount of fish in the Japanese diet. Dr. Akira Sekikawa, assistant professor of epidemiology at the University of Pittsburgh Graduate School of Public Health, discusses with host Dr. Larry Kaskel the results of his recent study showing how fish consumption may protect against heart disease. They explore the benefits of fish oil, and the unique attributes of this study compared to other studies examining the relationship between fish intake and heart disease.