come on guys, the question asked wasn't 'Should' i make a low carb beer, but rather, how?
The idea of weight loss being as simple as (calories in < calories out) is way over simplyfied there are so many
other factors to consider.
Since carbohydrates break down into digestible sugars and therefore calories they factor in, and then you also
need to account for stored fats, metabolism, psychology, lifestyle etc.
To understand why carbs play an important role you need to understand the process of ketosis as rt1 mentioned.
Basicly, Ketosis is a state where instead of our body burning carbohydrates it burns stored fat for energy.
You can artificially create ketosis by restricting the intake of carbohydrates focing our body to utilize other energy sources.
Some say Ketogenic diets can:
Drastically reduce cravings for high carbohydrate foods
Encourage dieters to consume fewer calories
Stabilize blood sugar levels
Discourage emotional eating
Increase dieters mental clarity throughout the day
Help maintain consistent energy levels
Help stay satisfied longer after eating, using protein, to curb hunger.
Its not just calories in calories out.
I say if you want to try and make a low carb beer, then go for it.
It would be nice if people just answered his question.
Having said that, low carb beers don't seem to be so much low carb but rather lower carb, but if your going to drink
beer anyway then its a better option.