Caramel popcorn is 400 kcal with 45.4 g sugar per 100 g. Half the weight is sweetening — a meta-analysis of 68 studies (Te Morenga et al., BMJ 2013) found reducing sugar lowered body weight by ~0.80 kg. This is a dessert, not a whole-grain snack.
How should I track Popcorn, caramel-coated, with peanuts?
Popcorn, caramel-coated, with peanuts is high in iron. When it comes to Popcorn, caramel-coated, with peanuts, weighing beats counting every time. Snack pieces vary in size, and a handful from a bag can easily be 50–100% more than the label serving. Research (Almiron-Roig et al., Appetite 2013) shows that people consistently underestimate portions of calorie-dense snacks. Another common trap: multi-serving packages. The label might show 150 calories "per serving," but if the bag contains three servings, you are really looking at 450 calories. Always check whether values are per piece, per serving, or per package.