Fluffy marshmallows are deceptively heavy — a "handful" runs 15–40 g. Bowl and bag size cause 20–30% over-serving (Wansink, Am J Prev Med 2006). Marshmallows have 318 kcal and 57.6 g sugar per 100 g.
How should I track Marshmallow?
The trickiest part about tracking Marshmallow is that small portions pack a lot of calories, and most people estimate sweet portions poorly. Research (Almiron-Roig et al., Appetite 2013) found that calorie-dense foods are underestimated by 50–200% when portioned by eye. Weighing on a scale takes the guesswork out. And here is the mindset shift that helps: tracking sweets is not about guilt. It is about awareness. When you log a treat honestly, you can plan around it and still hit your targets for the day.