I have never been given warnings etc about drinking, but I havent been a heavy drinker since high school.
I, personally, wouldnt drink anything now because my liver gets whacky so easily. I also am an epileptic so its not recommended, but that didnt stop me for years.
Everything in moderation is the key, but if you are having any liver issues or have had some in the past.....I recommended refraining.
In addition to the liver alcohol does dehydrate you.
And last but not least DONT DRINK AND DRIVE