Bananas do not show adverse side effects after steaming, but some of the vitamins and other nutrients may be destroyed. Banana is not only fat and sweet, but also rich in nutrients, is a high sugar, low fat, high potassium, low sodium fruit. From a nutritional point of view, bananas are most rich in starch, containing 20 grams of carbohydrates per 100 grams. It also contains about 1.2 grams of protein, about 0.6 grams of fat, and a variety of vitamins and trace elements such as potassium, iron, and vitamin C. Although it is possible to destroy some of the water-soluble vitamins after steaming bananas, there are no health-affecting side effects. Since bananas are high in sugar, they are not suitable for diabetic people in order to avoid elevating blood sugar levels.