grams of sugar in a banana
Sugar in Bananas. A medium banana, measuring 7 to 7 7/8 inches long and weighing 118 grams, contains 14 grams of sugar. This amounts to about 53 percent of its total 105 calories.utritional Benefits. Bananasâ sugar comes with a quality nutrition package. In one medium banana, you get more than 3 grams of fiber, 10 percent daily recommended value for a 2,000-calorie diet. Fiber helps with proper digestion and can lower your cholesterol.