Potassium : the underdog nutrient

There are many, but for the sake of this article I'm focusing on its role in preventing cardivascular disease. I am sure you have heard often that too much sodium (salt) will contribute to high blood pressure. This is because sodium constricts the blood vessels of the heart which in turn elevates the total pressure of the blood against the heart walls. High blood pressure is dangerous because it is a stepping stone for heart disease, which includes heart attacks and strokes. Potassium performs the exact opposite - it is a "vasodilator", which means it RELAXES the blood vessels of the heart