There is Protestant drinking and there is Catholic drinking, and the difference is more than mere quantity. I have no scientific data to back up my claims, nor have I completed any formal studies. But I have done a good bit of, shall we say, informal study, which for a hypothesis like this is probably the best kind.
To begin with, what is Catholic drinking? It's hard to pin down, but here's a historical example. St. Arnold (580-640), also known as St. Arnulf of Metz, was a seventh-century bishop of Metz, in what later became France. Much beloved by the people, St. Arnold is said to have preached against drinking water, which in those days could be extremely dangerous owing to unsanitary sewage systems -- or no sewage system at all. At the same time, he frequently touted the benefits of beer and is credited with having once said, "From man's sweat and God's love, beer came into the world."
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