IN AUGUST 1993, fifty researchers gathered together in an overheated hotel conference room in Bethesda, Maryland, to design what would come to be known as the DASH study.
The initials “DASH” stand for Dietary Approaches to Stop Hypertension. The fifty researchers represented five research teams. There was Laura Svetkey, MD, and her team from Duke; George Bray, MD, and his team from the Pennington Center in Louisiana; Larry Appel, MD, and his team from Johns Hopkins; Bill Vollmer, PhD, and his team from Oregon Health Sciences Center; and my team from Harvard. The National Heart, Lung, and Blood Institute had...