Alcohol is the "enemy" for anyone who has undergone a liver transplant and should be avoided at all costs, Australian Liver Foundation chairman Mike Ahern says.
His warning comes after Senator Derryn Hinch's ex girlfriend claimed the former broadcaster was drinking again despite having had a liver transplant five years ago after alcohol destroyed his own.
Senator Hinch says he has been occasionally drinking watered down red wine and ultra light beer, and that his surgeon had given him permission to do so.
But Mr Ahern says alcohol is simply "no good" after a liver transplant largely because of the impact it can have on medications patients must take to prevent their new organ being rejected.