Just a note: If you are a type 1 diabetic and drink "Bailey's" or some other such sweet drink, you will need some insulin. They are FULL of sugar - (carbohydrates).
For almost all other liqueurs, you will need to "snack" while you drink because alcohol in general "lowers" your blood sugar.
As for beer, it's an "equalizer", as the carbohydrates in a beer almost identically counteract the effects of the alcohol.