It first ignored the fact that the initial study was of Japanese doctors and maybe having a medical education made you more likely to adopt healthier practices.

The next study ignored wealth.

The next study ignored education and wealth.

It proceeds to be bad study after bad study until 20 or so years after the first study when someone thought "what if the non-drinking crowd included people who were alcoholics and people who had to stop drinking because of health problems?" Turns out when you only focus on non-drinkers who never regularly drank and compared them with wine drinkers the wine drinking crowd has a lot more health issues.

I work in the wine business and I laugh every time I see a new study to see what they ignored to conclude wine was a health food

[–] taiyang 6 points 11 months ago

Wine as a health food is such wishful thinking, haha. I have the privilege of learning some advanced statistical methods in grad school and so many of those issues are easily accounted for with better data and models.

Or, you know, common sense. Lol