How Many Calories In A Banana?: Bananas contain fiber, potassium, and vitamin C, good for others-you have vitamins and minerals. Banana has the highest reputation among all fruits. People say that they are doing too much carbohydrate, too much sugar, or even many calories. There is a whole movement dedicated to making fewer smoothies of these worries because of the bananas. But can you still eat it - also if you are trying to lose weight? Yes and yes Here is the truth about this sweet and creamy fruit-and for that-your body will be. How Many Calories in a Banana?