🍎 Fruitsveganvegetariangluten free
🍌 Calories in Banana
Nature's fastest energy source — the pre-workout fruit of choice
Per 100g
89kcal
1.1g
Protein
23g
Carbs
0.3g
Fat
Calculate Your Serving
Full Nutrition Facts — Per 100g
| Nutrient | Per 100g | Per 1 medium banana (120g) |
|---|---|---|
| Calories | 89kcal | 107kcal |
| Protein | 1.1g | 1.3g |
| Total Carbs | 23g | 27.6g |
| — of which Sugar | 12g | 14.4g |
| Total Fat | 0.3g | 0.4g |
| Dietary Fibre | 2.6g | 3.1g |
| Sodium | 1mg | 1mg |
Macro Breakdown
Protein1.1g (4.4 kcal)
Carbohydrates23g (92 kcal)
Fat0.3g (2.6999999999999997 kcal)
All values per 100g. Protein & carbs = 4 kcal/g · Fat = 9 kcal/g
Key Vitamins & Minerals
Vitamin C8.7mg
11% of daily reference intake
Potassium358mg
10% of daily reference intake
Magnesium27mg
7% of daily reference intake
✅ Key Nutrition Facts
- •358mg potassium per 100g — important for muscle function
- •Natural sugars provide quick energy — ideal before exercise
- •Contains vitamin B6 — supports protein metabolism
- •One of the most affordable fruits — year-round availability
Calories by Serving Size
| Serving | Grams | Calories | Protein |
|---|---|---|---|
| 1 small banana (90g) | 90g | 80 kcal | 1g |
| 1 medium banana (120g) | 120g | 107 kcal | 1.3g |
| 1 large banana (150g) | 150g | 134 kcal | 1.7g |
| 100g | 100g | 89 kcal | 1.1g |
Frequently Asked Questions
How many calories are in a banana?+
A medium banana (120g) contains approximately 107 calories. A small banana (90g) is around 80 kcal and a large banana (150g) is about 134 kcal. Per 100g, bananas contain 89 calories.
Are bananas fattening?+
No — bananas are not fattening on their own. A medium banana is only about 107 calories. Weight gain comes from consuming more calories than you burn overall. Bananas are nutritious, filling, and a healthy addition to any diet when eaten in sensible portions.
Are bananas good before a workout?+
Yes. Bananas are one of the most popular pre-workout foods. Their combination of quickly available natural sugars (fructose and glucose) and potassium makes them ideal for fuelling a workout — easily digestible with minimal bloating.
Do bananas have a lot of sugar?+
A medium banana contains around 14g of sugar — natural fructose and glucose. While this is higher than most vegetables, it is still much lower than processed snacks. The sugar in bananas comes packaged with fibre, potassium, and vitamins that make it a nutritionally beneficial food.
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Data source: USDA FoodData Central & peer-reviewed nutritional references. Values are averages — actual nutrient content varies by brand, preparation method, and growing conditions. Not medical advice.