People take Potassium to support and maintain healthy electrolyte balance, regulate fluid balance, and support the health of muscles and the nervous system.** Potassium is an essential mineral and electrolyte necessary to promote and maintain water balance and cardiovascular health.** Potassium is used by muscles, including the heart, for proper energy utilization. Potassium also helps your body to regulate sodium which, in turn, helps with proper blood pressure management.