Due to the nature of how alcoholic drinks are made, by fermenting and distilling natural starch and sugar, each alcoholic drink contains a number of calories.
Each alcohol type varies in the number of calories it contains, but some can contain as many as what's in a slice of pizza. The Drinkaware website holds information about the number of calories that can be found in alcohol and also has a handy guide which tells you approximately how many calories can be found in a wide range of alcoholic drinks.
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