Subtropical weather brings abundant bananas to Taiwan. Banana contains almost all vitamins and minerals, and it is rich in fiber, pectin, and pectose, so it boosts the vigor of beneficial bacteria (lactic acid bacteria) in the guts and stimulate peristalsis. Banana contains iron, which promotes the growth of red blood cells. The vitamin B2 and citric acid in banana produce an synergistic effect that breaks down factors that cause the body to tire. Banana is rich in potassium, which suppresses blood pressure, so it is suitable for people with high blood pressure or heart disease. The vitamin B6 in banana helps to keep hair black and strengthens the livers.