Ripe banana has 89 kcal and 12.2 g sugar per 100 g. As bananas ripen, starch converts to sugar — a brown-spotted banana has more sugar but the same total calories as a yellow one.
How should I track Banana, ripe?
When tracking Banana, ripe, weigh the edible portion — after peeling, coring, or removing seeds. The part you throw away does not count, but it can make up 20–40% of the total weight depending on the fruit. A systematic review (Whitton et al., Adv Nutr 2022) found that fruits are among the most commonly misestimated food groups. One more thing to watch: fresh and dried versions have very different calorie density. A handful of dried fruit can have the same calories as a whole bowl of fresh — always double-check which form you are logging.