The objective of the Trial of Antihypertensive Intervention Management (TAIM) was to determine the efficacy of dietary management and/or drug therapy, namely thiazide-like diuretics or a beta-blocker, in the control of mild hypertension. Additionally, the Continuation of the Trial of Antihypertensive Intervention Management (COTAIM) tested the effects of long-term weight reduction, and sodium/potassium changes added to weight reduction, as well as the original drug treatment, on the failure rate of blood pressure control.