Does alcholic drinks have nutritional value?

Yes it does

Lager beer approximately contains 45 calories / 100 g

Brandy and Liquer 300 calories / 100 g

Rum 130 calories / 100 g

Vodka and Whisky 240 calories / 100 g

Wine 85 calories / 100 g

So, if you are going to loose some weight you'd better to avoid of consuming of alcohol.