Lots of alcoholics have candida as well... so they keep craving the alcohol.... and it becomes a bad cycle...
But going on a candida diet takes a lot of effort.... this person has to really want to get better to convince them to cleanse the body.....
I would recommend AA as well... or an appointment with a counseller that has an understanding of addiction....
Let them know your concern... and recoomend a meeting..and even let them know that you have heard of other things that can help as well...
Dont get too attached to the outcome.... this person has to really want to change..... alcoholism is really tricky... sometimes it takes a lot of hard knocks to break out of it....