Low potassium is a problem that can affect people of all ages and lifestyles. Doctors often refer to this condition as hypokalemia, and it occurs when blood potassium levels fall below 3.5 millimoles per liter. If potassium levels drop below 2.5 millimoles per liter, immediate medical intervention is needed to prevent potentially life-threatening complications. Without sufficient levels of potassium, cells within the body are unable to function as efficiently. Electrical signals that are transmitted by potassium can keep nerve, muscle and heart cells working properly. Potassium also works with sodium, calcium, magnesium and chloride to balance the body’s water levels and keep the heart beating at a normal rhythm.Several factors are known to cause low potassium. Quite often, potassium levels drop to insufficient levels after diuretic medications are taken to control high blood pressure by inducing urination. Taking laxative and certain antibiotics can also cause low potassium. Chronic kidney disease, diabetic ketoacidosis and primary aldosteronism are among the medical conditions that often decrease potassium levels within the body. Potassium levels can also be insufficient due to not eating enough potassium-rich foods such as bananas, avocados and pears.
