Bananas are a convenient and energy-rich fruit perfect for on-the-go snacks or breakfast. A medium banana contains about 105 kcal, 27g of carbs, 14g of sugars, and 422mg of potassium, among other nutrients. While they are excellent for pre-workout energy due to their resistant starch, which raises blood sugar slowly, people with potassium restrictions or concerns about post-meal blood sugar spikes should be cautious. Generally, eating one banana daily is safe for most people and can contribute to a balanced fruit intake. Adjustments should be made based on individual diet and health conditions.