Hypokalemia occurs when the level of potassium in the body’s blood is low and below normal levels. Hypokalemia is basically determined when the potassium level in the body is below 3.5 mmol/L. Many people have a low intake of potassium due to an unbalanced diet, which may also lead to low potassium. Some patients may also have low potassium when they lose a lot of potassium due to frequent vomiting. Patients with kidney problems can also cause low potassium, and some patients with hyperthyroidism can also have low potassium. Hypokalemia is a condition in which the amount of potassium present in the body is lower than normal, when various organs are abnormal or when various diseases occur. When potassium is low, it should be replenished in a timely manner by eating more bananas and pears in the daily diet.