kilokaloria
Kilokaloria, abbreviated kcal, is a unit of energy used primarily in nutrition to express the energy content of foods and beverages. One kilocalorie equals 1000 small calories (cal) and is equal to 4.184 kilojoules (or 4184 joules). In many contexts, especially in English-language nutrition labeling, the term calorie is colloquially used to mean kilocalorie.
Distinctions and terminology: The small calorie is a unit used in physics and chemistry, while the kilocalorie
Macronutrient energy values: Carbohydrates and proteins provide about 4 kcal per gram, fats about 9 kcal per
Usage and context: Kilocalories are widely used in dietary guidelines, meal planning, and food labeling. While