Banana is a fruit that is medicinal to the body as eating it will lower blood pressure and prevent cancer and also asthma. Lowering blood pressure can also be said to create good heart health. India is the worlds producer of Banana. Eating about 3,500mg of potassium per day is recommended for an adult. Banana has potassium as it's major content. India is the world's largest producer of banana. India gross about 30 million tonnes per year. China followed India while Philippines and Ecuador follows in that order. The link attached here will indicate more of the world's banana producing countries and their quantities each produce.
World largest producer of banana