Fresh parsley has 36 kcal per 100 g. Used as a garnish in 5–10 g amounts — calorie contribution is negligible. In Bulgaria, магданоз goes into nearly every soup and stew.
How should I track Parsley (fresh)?
Parsley is high in iron. For consistent tracking of Parsley, 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.