Bananas contain three natural sugars – sucrose, fructose and glucose, along with fibre, of course. Bananas give us a big, steady and instant boost of energy. Scientific research has proven that just two bananas can provide the body with enough energy to exercise for 90 minutes. Therefore, bananas are one of the favorite fruits of prominent athletes. But energy is not all that bananas provide. Bananas give us energy and health. It helps us overcome a large number of diseases, so it should always be consumed.