[Paul]

Edit: Wait, 24000 calories = 24 kcal
Irgendwas ist falsch...

Ja, das Sprachverständnis der Amerikaner... die können die Einheit nicht vernünftig benennen...

In the International System of Units, energy is measured in joules (J) or its multiples; the kilojoule (kJ) is most often used for food-related quantities. An older metric system unit of energy, still widely used in food-related contexts, is the calorie; more precisely, the "food calorie", "large calorie" or kilocalorie (kcal or Cal), equal to 4.184 kilojoules. (It should not be confused with the "small calorie" (cal) that is often used in chemistry and physics, equal to 1/1000 of a food calorie.) Within the European Union, both the kilocalorie ("kcal") and kilojoule ("kJ") appear on nutrition labels. In many countries, only one of the units is displayed; in the US and Canada the unit is spelled out as "calorie" or "Calorie".

http://en.wikipedia.org/wiki/Food_energy