you need potassium tablets and Bananas are rich in vitamin B6 and they are a good source of fiber, vitamin C, magnesium and potassium. Lack of B6 in a diet can cause weakness, irritability and insomnia. The potassium found in bananas helps to regulate blood pressure and may reduce the risk of high blood pressure and stroke. Potassium is also essential for helping muscles to contract properly during exercise and reduces cramping up. A medium-sized banana provides 400 mg of potassium -11% of daily value- and contains 110 calories and 4 grams of fiber. Bananas also contain plenty of carbohydrates which are the body's main source of energy. They are also easy to digest.

