A medium banana (about 120 g) has roughly 105 kcal, 27 g of carbs and 3 g of fibre.
Bananas are one of the most popular fruits in the world, and a great source of quick energy, potassium and vitamin B6. Here's the calorie breakdown by size and ripeness.
| Serving | Weight | Calories | Carbs |
|---|---|---|---|
| Extra small (<15 cm) | ~80 g | ~72 kcal | ~18 g |
| Medium (15–18 cm) | ~120 g | ~105 kcal | ~27 g |
| Large (>20 cm) | ~150 g | ~135 kcal | ~34 g |
| 100 g (any size) | 100 g | ~89 kcal | ~23 g |
The calorie total stays roughly the same as bananas ripen, but the carbohydrates become simpler (more sugar, less starch), so a very ripe banana may raise blood sugar faster than a green one.
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