Potassium is a dietary mineral that is essential for normal body function. It is a nutrient that the body uses to maintain electrolyte and fluid balance, and it is found both inside and outside of cellular fluid. An essential mineral, potassium also plays many vital roles in the human body, and it often works with sodium to keep it operating properly. Potassium, a positively charged ion, is actively pumped into the cell while sodium is pumped out, creating an electrical charge in the cell membrane. Miami dental professionals recommend patients get plenty of potassium to improve many aspects of overall health.