“As the name implies, alcoholic liver disease is liver injury attributed to alcohol abuse. The majority of Americans manage to drink alcohol without serious consequences. Research suggests, however, that liver disease may begin to develop after a “threshold” dose of alcohol has been consumed—generally assumed to be four drinks a day (four 12 ounces beers, four glasses of wine, or four ounces of hard liquor) for men, and one half that quantity for women. Nearly everyone who consumes this amount or more will have some evidence of liver injury, although less than 50% will develop serious liver disease.”

http://www.mayoclinic.com/health/alcohol/sc00024

However during Prohibition the government poisoned alcohol to scare people away from drinking.

http://www.slate.com/id/2245188

Prohibition was perhaps the single most ill conceived social experiment and we are still suffering the after effects.

This article’s 1932 date is about a year before the US repealed Prohibition (of alcohol), which began in 1920.

For an amusing lyric, see Irving Berlin’s 1920 tune “C-U-B-A.” http://www.oldielyrics.com/lyr.....u-b-a.html

Actualy this article is correct. Though you would have to consume a whole lot of copper for it to be a problem in most people