Ask Mr. Wizard

Where do calories in beer come from?


Walter Scott • Reisterstown, Maryland asks,

One recent afternoon, over a few of our favorite beverages, a friend and I got into a good-natured argument. My friend is a diabetic (and a beer lover) so calorie and nutrition information is very important to him. We were debating just where the calories in beer come from. My friend’s opinion is that the alcohol provides the calories, based on the fact that a beer and a shot of liquor are considered equivalent. Having recently read the article on creating low calorie beers using “Beano,” (April, 2001) I hypothesized that the majority of the calories in beer must come from unfermented carbohydrates. Please educate us.


There is really no reason to argue about this because you are both partially correct. An average 12-ounce serving of a “domestic-style” beer contains about 14 grams of ethanol and 11 grams
Response by Ashton Lewis.