Pink grapefruit has 42 kcal and 6.9 g sugar per 100 g. Larger than other citrus, a half grapefruit (120 g flesh) delivers about 50 kcal. Grapefruit interacts with some medications — check with a pharmacist.
How should I track Grapefruit, pink?
When tracking Grapefruit, pink, 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.