Fifty-six units a week as the safe upper limit for male alcohol consumption

Back in 1982 both the Royal College of Psychiatrists and the British Medical Journal’s ABC of alcohol were giving fifty-six units a week as the safe upper limit for male alcohol consumption. Yet, five years later, this limit was reduced to twenty-one units a week, without any reasons for the change being given and without there being any substantive new research to back it up.

A. Barr, Drink: a social history (1995), 321