Key points from article :
Study of nearly 2 million adults who were free from CVD at baseline.
Non-drinkers were separated from former and occasional drinkers.
Moderate drinking associated with a lower risk of angina, heart failure and ischaemic stroke.
Moderate drinking defined as no more than 14 units (112 grams) of alcohol a week.
Observational study, so no firm conclusions can be drawn about cause and effect
