Smithwicks is only 3.8% on draught, isn't it? Not sure what it is in a can (4.5% in a bottle), but calories are loosely related to the beer's ABV. So if the canned beer also has a low ABV, it will similarly likely be pretty low in calories. Not sure if that's an absolute rule of thumb though. I'd imagine that some of those low-alcohol beers (for example Nanny State) have a high sugar content, and as a consequence are have higher calories.
*Edit: Nanny State has 26 calories per bottle according to this source.
Smithwicks is only 3.8% on draught, isn't it? Not sure what it is in a can (4.5% in a bottle), but calories are loosely related to the beer's ABV. So if the canned beer also has a low ABV, it will similarly likely be pretty low in calories. Not sure if that's an absolute rule of thumb though. I'd imagine that some of those low-alcohol beers (for example Nanny State) have a high sugar content, and as a consequence are have higher calories.
*Edit: Nanny State has 26 calories per bottle according to this source.
It's also 3.8% in the can, anyone got an idea if any other companies plan to do this with there drinks, it's good to see the calorie content of the drinks.
It's likely to be a legal requirement soon so they're doing it early. In March 2015, Brewers of Europe, of which Diageo is a member, announced that their members would voluntarily put nutritional information and ingredients listing on their packaging. So far they've been really lagging behind with the ingredients bit, presumably as they research how to continue making the same products without using the things they don't want you to know about. Diageo announced the other day that they've stopped using isinglass in Guinness. I'd guess that's part of a bigger project of recipe revision ahead of ingredients listing.
There's a recent press release from Brewers of Europe on the subject here.
Always thought Guinness was one of the lower calorie content beers, with 175kcals but was surprised to see Smithwicks was 150kcals per can.
Guinness used to have it on their cans a few years back, guinness 4.2% draft was 170kcal back then. So if its 175kcal now they must have changed the recipe.