Alcohol is distilled form grains, which are a secondary form of sugar. I’m a recovering alcoholic. It isn’t so much the booze itself that did me in as much as having the mother of all sugar allergies.
Of interest to you ~ and you may wish to keep up on the literature on the matter ~ they used to believe that everybody in the world had the same set of half a dozen genes that control the growth, development and operation of the liver.
In more recent times they found that there were 11 such "gene sets" in play. That turned porphyrias and alcoholism (in all its various manifestations) into anomalous liver gene processing. Like if you have one of these sets you might not get the enzymes you need for processing various foods. Many Sam'mi' can't metabolize alcohol at all for eample; others have problems with statins; others don't produce enough of the right type of heme (either right handed or left handed); and so on.
I kind of backed out of learning everything about this situation when they got the count up to 82 different genes or gene sets (I think they're all on Chromosome 17).
Actually, the seasonal porphyria where you produce the wrong heme can result in a very serious anemia and require the consumption of Vitamin B-12! A number of alcoholics have that problem ~ they used to believe it was a result of alcohol consumption, but it's the other way around ~ somewhere B-12 gets leaked, so there you go.
Most of the research appears first in Swedish and Finnish medical journals. That's because they have all those people with anomalous liver genes! The reports are in English so you'll be able to read them. Maybe you can't understand all the technical jargon but there's always a synopsis that gives a good idea of what is going on.
Good luck.