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Source of potassium and fiber, quick energy
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 cup (medium) of Banana (sliced) (150 g) has 134 calories. That works out to 89 calories per 100 g. It contains 34.2 g of carbs, 1.7 g of protein, 0.5 g of fat and 3.9 g of fiber. Its 0.6 mg of B6 covers 32% of the Daily Value. Its glycemic index is 51 (medium), so it raises blood sugar at a moderate pace.
Selected: 1 cup (medium) · 150 g
134
KCAL / 150G
Carbs
34.2g
· 12% DV
Protein
1.7g
· 3% DV
Fat
0.5g
· 1% DV
Fiber
3.9g
· 14% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 92% · Protein 5% · Fat 3%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 134 kcal | |
| Total fat | 0.5 g | 1% |
| Saturated fat | 0.17 g | 1% |
| Trans fat | 0 g | |
| Sodium | 1.5 mg | 0% |
| Total carbohydrate | 34.2 g | 12% |
| Fiber | 3.9 g | 14% |
| Protein | 1.7 g | 3% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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| Serving | Amount | Calories |
|---|---|---|
| 1 cup (medium) | 150 g | 134 kcal |
| 1 slice (thin) | 15 g | 13 kcal |
| 1 slice (thick) | 25 g | 22 kcal |
| 1 piece (small) | 90 g | 80 kcal |
| 100 g | 100 g | 89 kcal |
| 1 cup (small) | 100 g | 89 kcal |
| 1 piece (medium) | 120 g | 107 kcal |
| 1 piece (large) | 150 g | 134 kcal |
| 10 slice (medium) | 150 g | 134 kcal |
| 1 cup (large) | 200 g | 178 kcal |
Calculated from 89 calories per 100 g.
Sliced bananas brown when enzymes in the exposed fruit react with oxygen. This is a normal change, not proof that the banana has spoiled. Discard it if you notice mold, an off smell, or a slimy texture.
Yes, banana slices freeze well. Arrange them in a single layer on a tray first, then transfer the frozen pieces to a sealed bag or container. They soften after thawing, so they work best in smoothies or baking.
Put bananas in a paper bag at room temperature to help them ripen faster. The bag traps ethylene released by the fruit; adding a ripe apple can speed the process further. Avoid sealing them in plastic, which can trap moisture.
Refrigerate bananas once they are ripe to slow further ripening. The peel may darken in the cold, but the fruit inside usually remains fine. Keep cut banana slices in a covered container and use them promptly.
Yes, banana strings are safe to eat. They are vascular bundles that help move nutrients through the fruit, not parasites or signs of damage. Removing them is a matter of preference.
A cut banana does not ripen in the same way as an intact fruit, but it can soften and brown as it sits. Cover the cut surface or refrigerate the slices, and use them soon for the best texture.
Yes, banana peels are edible, though they are tough and often taste better cooked than raw. Wash the peel thoroughly before using it, and avoid any parts that are moldy or badly damaged.
Bananas do not cause constipation for everyone. Ripe bananas provide fiber, while less-ripe bananas may feel constipating to some people. Fluids and the rest of your diet also affect bowel regularity.
A banana is not a proven quick fix for muscle cramps. It supplies potassium, but cramps can have many causes, and eating a banana does not reliably prevent or stop them during exercise.
Yes, dogs can eat a small amount of peeled banana as an occasional treat. Remove the peel, which is difficult to digest, and avoid giving large portions because the fruit is sweet and can upset a dog’s stomach.
Vitamins
B6
0.55mg · 32% DV
Vitamin C
13.05mg · 15% DV
B5
0.5mg · 10% DV
B2
0.11mg · 8% DV
Minerals
Manganese
0.41mg · 18% DV
Potassium ⭐
537mg · 16% DV
Copper
0.12mg · 13% DV
Magnesium
41mg · 10% DV
Sodium
1.5mg · 0% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 134 calories in 1 cup (medium) (150 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Sliced banana is simply ripe banana peeled and cut into rounds. Bananas are eaten fresh around the world, and the slices are an easy addition to breakfast bowls, porridge, yoghurt or toast. Their soft texture and mellow sweetness also work well in smoothies, fruit salads and baked desserts. Since the cut surface can brown as it sits, slice a banana shortly before serving if you want it to look fresh.
Banana provides carbohydrate for quick energy, along with fibre and potassium; it is naturally very low in fat. For a more filling snack, pair it with plain yoghurt, oats or a small handful of nuts. Its sweetness often means you can skip added sugar in breakfast dishes and smoothies.
High
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Medium
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
NOVA 2
Minimally Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
No known major allergens
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
SATURATED
0.17g
MONOUNSATURATED
0.05g
POLYUNSATURATED
0.11g
Omega 6:3 ratio 1.6:1
Below the ideal 4:1 — a good omega balance.
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Nutrition data compiled from USDA FoodData Central and scientific sources.