3.Enhance immunity, bananas can enhance the immunity of pregnant women, so as to effectively resist external diseases. 4.Supplement energy, from a nutritional point of view, the sugar of bananas can be quickly converted into glucose and immediately absorbed, which is a rapid source of energy. 5.Supplement potassium, when the body is deficient in potassium will occur arrhythmia, tachycardia, blood pressure drop, A banana contains about 400mg of potassium, which can maintain the coordination of myocardial contraction and maintain neuromuscular excitability, so there are great benefits of eating bananas during pregnancy.