Spirits lower blood glucose level as does dry wine, as the sweeter it is the more sugar it might have.
In my experience, vodka and diet coke just lowers my blood glucose, with ordinary coke it balances both the sugar and alcohol, same with bucks fizz, medium sweet wine or rum and coke. I've never had beer so I don't know what its like, but assuming its made from a sort of wheat product (hop), it has a starchy background but the longer it ferments the less the sugar (starch) but more the alcoholic flavour / intensity or maybe the sugar is what ferments into alcohol. You're better off asking a brewer for that kind of information.
Ps: I am a bit partial to whiskey myself, a bit of the old jack daniels and coke.