Does eating bananas make you fat? 👉 100g bananas (one medium-sized banana) contains approximately 89 calories, of which a) 22.9g are carbs b) 1.1g are protein c) 0.3g are fats ✅ (this is much less than the sandwich or burger you reach out for a snack over a banana) 👉 Most of the carbs in bananas are complex carbs and around 3g are fiber. 👉 Unripe bananas are rich in resistant starch, which feeds good gut bacteria. 👉 Bananas are also a great powerhouse of micronutrients like 1. Potassium 2. V