Bananas Serving: 1 medium banana Protein: 1.2 grams Carbohydrates: 26.7 grams Calories: 106 Fat: 0.5 grams Benefits: Bananas have a lots of carbohydrates and are easy to digest. Bananas also have a nice dose of potassium, an important mineral that helps keep blood pressure low. They have plenty of vitamin B too.