A medium-sized banana will provide around 320-400 mg of potassium, which meets about 10% of your daily potassium needs. Potassium helps your body maintain a healthy heart and blood pressure. In addition, bananas are low in sodium. The low sodium and high potassium combination helps to control high blood pressure.
A banana is an elongated, edible fruit – botanically a berry – produced by several kinds of large herbaceous flowering plants in the genus Musa. In some countries, bananas used for cooking may be called “plantains”, distinguishing them from dessert bananas