Quince has 57 kcal and 7 g sugar per 100 g. Too hard and astringent to eat raw — quince is always cooked into jams, preserves, or the Bulgarian dessert dulce. Cooking concentrates the sugar substantially.
How should I track Quince?
When tracking Quince, 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.