As a medical professional, I can tell you that potassium is an essential mineral that plays a crucial role in the functioning of nerve and muscle cells, especially those of the heart. The normal range for blood potassium levels is typically between 3.6 to 5.2 millimoles per liter (mmol/L). A dangerously low potassium level, which is medically referred to as hypokalemia, can occur when the level falls below 2.5 mmol/L. This condition can be life-threatening and requires urgent medical attention. read more >>

It is critical to the proper functioning of nerve and muscles cells, particularly heart muscle cells. Normally, your blood potassium level is 3.6 to 5.2 millimoles per liter (mmol/L). A very low potassium level (less than 2.5 mmol/L) can be life-threatening and requires urgent medical attention.read more >>