There continues to be a great deal of media coverage of anti-alcohol advocates who claim that there is “no safe level” of alcohol consumption. This series of blog posts provides 3 reasons why I will continue to ignore these assertions.
Reason #1 – Only Pay Attention to Good Science
I studied the history and philosophy of science as an undergraduate. While I have great respect for scientists and their accomplishments over the centuries, I am also keenly aware of what can go wrong. Science often has an aura of both truth and infallibility, which is perpetuated by the media. In reality, science and its conclusions are only as good as the scientific method that is used for any particular analysis. Unfortunately, some science is either poorly done or extremely difficult to do … and the conclusions are often dubious or incorrect.
The science behind the “no safe level” alcohol claims is part of a branch of science known as “nutritional epidemiology”. It is based on observations of the lifestyles and health of people which are almost always compiled from questionnaires (i.e. data which can be inherently unreliable due to inaccurate responses and/or bias). This branch of science has serious structural issues which should prevent sweeping conclusions or, at the very least, any conclusions should be subject to extensive caveats and warnings.
John Ioannidis is a professor at Stanford University and an acknowledged expert on the validity of scientific studies and conclusions. In 2018, he wrote that “the emerging picture of nutritional epidemiology is difficult to reconcile with good scientific principles. The field needs radical reform.” There is a good analysis of the overarching problems in this book by Stuart Ritchie: Science Fictions: How Fraud, Bias, Negligence and Hype Undermine the Search for Truth (at p.164 onward). And there is more specific analysis regarding the “no safe level” claim in this fine article by David Morrison: Has the WHO lost its way regarding alcohol?
For further background on the science related to alcohol and health, you might want to take a look at these recent books: The Very Good News About Wine by Tony Edwards and Wine & Health by Richard Baxter, MD.
At a most basic level, and after carefully looking at all the evidence, I do not believe that there is any reliable scientific evidence that the moderate consumption of alcohol poses any significant risk to most individuals … and I am strongly of the view that the “no safe level” conclusion has almost zero scientific merit. As such, I will continue to drink wine in moderation, as I have for the past few decades and as civilized society has for thousands of years.
Stay tuned for Reason #2 – Don’t Listen to Biased Anti-Alcohol Advocates