beers, lager, ciders and sweet wines will all have an effect just as any carb would....
pints of most beers, lagers and ciders usually have 10-20g in them....
spirits on their own will have no effect on the blood sugar, unless mixed with a full sugar mixer or fruit juice etc....
after alcohol is consumed though, the livers normal production of glucose is hindered as its tries to get rid of the alcohol, so this can also drop blood sugar levels, which for medicated diabetics can be bad......