Potassium is the third most abundant mineral in the body (calcium and phosphorus are the most abundant). Moreover, potassiumis one of the major electrolytes in the body, along with sodium and chloride. Electrolytes are electrically charged mineralscritical to proper fluid balance in the body. They are necessary to the regulation of blood pressure and muscle contraction; theyalso ensure proper function of nerves and kidneys. In fact, these three electrolytes together are important to every chemicalprocess in the body. Potassium also aids in converting blood sugar into glycogen.Our sustained released Potassium 99mg is available in 100 count vegetarian capsules.