Bananas remain one of the world’s favorite fruits thanks to their portability, natural sweetness, and impressive nutritional value.

Still, their health benefits can vary depending on how ripe they are. Two stages most people encounter are slightly ripe bananas — yellow with few or no brown specks — and fully ripe bananas covered in brown spots.

While both types have advantages, knowing how they differ can help you pick the right one for your needs.

Sugar and Energy Levels

Slightly ripe bananas contain a moderate amount of natural sugars, mainly sucrose and fructose, while still holding on to more starch. Because of this, they release energy more slowly and help keep blood sugar levels steadier. They are a great choice for people watching their sugar intake, trying to manage their weight, or looking for a steady source of fuel.

Brown-spotted bananas, however, have a higher sugar content due to the starch breaking down into simpler sugars as they ripen. This makes them sweeter and easier to digest, but it also means they can cause a quicker spike in blood glucose. Those with diabetes or individuals trying to limit sugar may need to eat them with caution.