Desalinated seawater supply and all-cause mortality in hospitalized acute myocardial infarction patients from the Acute Coronary Syndrome Israeli Survey 2002-2013 examines the effects of consuming desalinated water on hypomagnesemia and cardiovascular health in Israeli communities. The study presents data on rates of mortality in patients who came from regions that used desalinated water for drinking water compared to patients who came from regions that did not use desalinated water. Before the use of desalinated water, rates of mortality were the same in both regions, however, after use of desalinated water in one region, rates of mortality were higher in the region using desalinated water for drinking water.