People eating peanuts and nuts two or more times per week have a 47% reduced risk of sudden cardiac death and a 30% reduced risk of coronary heart disease death, compared to those who rarely or never ate them, according to research from the US Physicians' Health Study. This large prospective cohort study, which is published in this week's Archives of Internal Medicine, includes over 21,000 male doctors who were followed for an average of 17 years.