Jalapeno (whole) has 29 kcal per 100 g. The world's most popular hot pepper. The heat varies by plant — even peppers from the same vine can differ significantly.
How should I track Peppers, jalapeno?
Peppers, jalapeno is a good source of fiber. For consistent tracking of Peppers, jalapeno, 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.