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Food calorie guide
How many calories are in a banana?
A medium banana is usually around 100 calories. The exact number depends on size, which is why banana calories vary across charts and apps.
For weight loss, the better question is not whether bananas are “good” or “bad”. It is how the banana fits your breakfast, snacks, shakes and total day.
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Banana calorie guide by size
As a practical UK guide, a small banana is often roughly 80 to 90 calories, a medium banana roughly 100 to 110 calories, and a large banana roughly 120 calories or more. If accuracy matters, weigh it and use your tracking app.
For most people, the difference between banana sizes matters less than the toppings and drinks added around it. Banana with oats, yoghurt or a shake can be a useful breakfast. Banana plus lots of extras can become a higher-calorie meal quickly.
Bananas and shakes
Banana is one of the easiest fruits to blend into a shake because it adds texture and sweetness. It works especially well with Vanilla Cream, Banana Cream and chocolate-style flavours.
If you use Formula 1 and add a banana, count the banana as part of the meal rather than pretending it is invisible. That keeps the routine honest and easier to repeat.
When banana is useful
Banana is useful before a busy morning, after training, in overnight oats or when you want a snack that feels more filling than sweets or biscuits. It is not magic, but it is normal food and it can absolutely fit a sensible routine.
Banana in a weight-loss day
Banana can fit a weight-loss day when the portion is counted and the rest of the meal makes sense. A banana with yoghurt may be a snack. Banana blended into a shake may be breakfast. Banana added to oats may be part of a bigger meal.
The mistake is treating fruit as either perfect or forbidden. It is just food. Use the portion that fits the day.
Easy banana breakfast ideas
Slice banana into overnight oats with Vanilla Cream. Blend banana with Banana Cream Formula 1 for a thicker shake. Use half a banana with yoghurt if you want the taste without making the meal too big.
If you use Protein Drink Mix, add it because you want more protein, not because every recipe needs another scoop.
Banana size guide
| Banana size | Typical calorie range | Good use |
|---|---|---|
| Small | About 80-90 calories | Snack or chopped into yoghurt. |
| Medium | About 100-110 calories | Breakfast, oats or shake add-in. |
| Large | About 120+ calories | More filling option, count it properly. |
Related guides
Questions about How Many Calories in a Banana? Complete UK Calorie Guide + Calculator 2026
How many calories are in a banana?
A medium banana is commonly around 100 calories, but the exact number depends on size. Smaller bananas are lower; large bananas are higher.
Are bananas bad for weight loss?
No. Bananas can fit a weight-management routine. Portion size and the rest of the day matter more than one food.
Can I put banana in a shake?
Yes. Banana works well with Vanilla Cream, Banana Cream and Smooth Chocolate style shakes.
Should I avoid fruit because of sugar?
Most people do not need to fear fruit. If you have a medical reason to manage sugar intake, use qualified advice.
Why buy from us?
During the cost-of-living crisis we are determined to keep our prices extremely competitive and great value-for-money. We are still here to support you with your goals, but believe in fair pricing across the UK and will strive to achieve this for our customers.
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