Energivärden

Energivärden is a term used to describe the energy content of foods and beverages. It indicates how much energy the product can supply to the human body and is typically shown per 100 grams or per portion. Energivärden are usually presented in two units: kilojoules (kJ) and kilocalories (kcal), reflecting different systems of energy measurement used in nutrition labeling and dietary planning.

The energy value is calculated from a food’s macronutrient composition using standard energy factors, commonly known as the Atwater factors. Carbohydrates and protein contribute about 4 kcal per gram (17 kJ per gram), fat contributes about 9 kcal per gram (37 kJ per gram), and alcohol contributes about 7 kcal per gram (29 kJ per gram) when present. The total energivärde is the sum of these contributions, sometimes with adjustments for components that provide little metabolizable energy, such as certain types of fiber.

Labeling practices vary by regulator, but many jurisdictions require energy values to be listed in both kJ and kcal per 100 grams or per serving. This information helps consumers compare products, manage energy intake, and plan meals. The exact calculation and rounding rules are defined in nutrition labeling regulations in different regions.

It is important to note that actual metabolizable energy can vary between individuals due to digestion, absorption, and the food matrix. Energivärden reflect standard values and provide a practical basis for nutrition labeling and dietary decisions, rather than a precise measure of energy absorbed by any one person.