If you have high blood pressure (or would like to avoid it) you probably already know you should be limiting your intake of foods high in the mineral sodium. But did you also know you should be increasing your intake of foods containing other minerals? Potassium, magnesium, and calcium play important roles in blood pressure control. Increasing intake of foods rich in these minerals while decreasing intake of foods high in sodium may help keep your blood pressure under control.
Sodium: High sodium intake increases water retention throughout the body. Excess water in the circulatory system increases blood volume and therefore pressure on the arterial walls (blood pressure). Observational studies consistently demonstrate that dietary patterns higher sodium are associated with higher blood pressure and stroke risk. More importantly, many randomized controlled trials have shown that reducing salt intake decreases blood pressure. Most people consume too much sodium, typically as salt.