The study findings are very preliminary, the researchers said. Rigorous clinical trials are needed. “The study is meant to be an eye-opener, that we need to investigate this matter more. We used to take it [salt consumption] for granted, and now it is time to address it with more definitive trials,” lead researcher Dr. Rami Doukky, a cardiologist and associate professor at Rush University Medical Center in Chicago said. On the other part, salt increases blood pressure by drawing water into the arteries and veins, according to the American Heart Association, and high blood pressure is a long-known risk factor for heart disease. What is the balance point is hard to know at this time. Probably this will need to be specified for groups of patients with specific symptoms if not for every individual.