Interesting, the American usage seems to be quite different from usage in Germany. There is no such thing as a &quot;food calorie&quot; here, they&#x27;re labelled as &quot;kcal&quot; (kilocalories). From the German Wikipedia article on &quot;Kalorie&quot;:<p>&gt; Umgangssprachlich werden oft Nährwertangaben in Kilokalorien fälschlich
&gt; als „Kalorien“ bezeichnet. In den USA ist bei Nährwertangaben
&gt; die Bezeichnung calorie für Kilokalorien auch offiziell zulässig.<p>In English: Informally, kilocalories in food are often referred to simply as &quot;calories&quot;. In the USA, using &quot;calories&quot; instead of &quot;kilocalories&quot; in nutritional information is officially allowed.<p>Here it&#x27;s not allowed to label them as calories, they have to be labelled as kilocalories. They&#x27;re still called &quot;calories&quot; informally though.