A medium banana is about 105 calories with 27g of carbs, mostly fast-digesting sugars and a small amount of fiber. It's the classic pre- or post-workout snack because it's portable and provides quick energy. Bananas also bring a useful amount of potassium for muscle function.
Calories scale with portion. Here's how a typical banana serving translates in your tracker:
Balanced — banana sits in a moderate range and fits weight loss, maintenance, or muscle gain when portioned to your daily target.
Point your iPhone camera at banana and Spotwell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.
Download on theApp StoreBanana has approximately 89 calories per 100g. A typical serving — 1 medium (118g) — comes in at 105 calories.
1.1g of protein per 100g. That puts banana at roughly 1.2g of protein per 100 calories — a useful lens when comparing to other fruits sources.
The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With Spotwell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.
It depends on your overall calorie target. Banana is naturally low-calorie at 89 kcal per 100g, so it's easy to fit into a deficit.