Putting potassium in perspective.

In the article, the author discusses the potential effects of potassium to heart's health and how medications, diet, and kidney function could affect potassium levels in the body. Also cited are the possible sources of potassium like vegetables, legumes, and fruits, a Chinese study showing that a salt substitute with 75% sodium chloride and 25% potassium chloride could reduce the risk of stroke by 14%, and the main source of sodium in diet in the U.S., particularly processed foods.