> And from Google, acetic acid is 349 kcal / 100g, versus pure ethanol at 700 kcal / 100g. Metabolism matters. Gasoline is over 800kcal/100g, but you wouldn't

> And from Google, acetic acid is 349 kcal / 100g, versus pure ethanol at 700 kcal / 100g. Metabolism matters. Gasoline is over 800kcal/100g, but you wouldn't get that much from it (if anything at all). Alcohol has a particularly long metabolic pathway, which after ingesting approximately 20-30g gets cut short to one where acetic acid is excreted (commonly known as "breaking the seal") and the overall upper energy yield limit becomes approximately 110kcal/100g. Executive summary is that on a given session it's the first two 12oz (330ml) beers which provide most of the calories from alcohol and their contribution is on par with a snickers bar.