Irish moss (seaweed) has 49 kcal per 100 g. A red seaweed used as a thickener — the source of carrageenan. Used in gels and puddings at minimal calorie cost.
How should I track Seaweed, irishmoss?
Seaweed, irishmoss is high in iron. For consistent tracking of Seaweed, irishmoss, weigh it raw. Cooking method changes both weight and calorie density — steaming barely changes anything, but roasting with oil or frying can double the calories. A systematic review (Whitton et al., Adv Nutr 2022) found vegetables are omitted from food logs 2–85% of the time, often because people assume they are "free" calorically. While most vegetables are indeed low-calorie, the fats added during cooking are not. Log the oil, butter, or dressing separately to keep your tracking accurate.