the BMJ news section this week reports on an article (Addiction Research and Theory, doi:10.1080/16983) which seems to confirm what I had heard rumoured recently.
This metanalysis shows a flaw in the methodology of papers purporting support the notion that there is a reduction in mortality in moderate drinkers. Most papers report non-drinkers as including people who had stopped drinking, which people often do as they get older or become unwell. So for now at least the "J-shaped curve" suggesting a cardioprotective effect from moderate alcohol intakes seems to be something that needs more research.
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