Long term dietary use of potassium enriched salt reduced cardiovascular death in elderly men

Intervention: 2 kitchens (n = 768) were allocated to gradually increasing concentrations of potassium enriched salt (49% sodium chloride, 49% potassium chloride, and 2% additives). Potassium enriched salt was mixed with regular salt in a 1:3 ratio for the first week, 1:1 in the second week, 3:1 in the third week, and 1:0 beyond the third week. 3 kitchens (n = 1213) were allocated to regular salt (99.6% sodium chloride and 0.4% additives) at all times.