http://www.bbc.co.uk/health/healthy_..._alcohol.shtml
Alcohol consumed in moderation is thought to be beneficial in reducing the risk of coronary heart disease. Indeed, alcohol consumption in conjunction with high intakes of fruit and vegetables, may well explain the so-called 'French paradox'. The French diet is considered to be very high in fat, especially saturated fat, yet the death rate from coronary heart disease remains relatively low. It is thought this is at least partly due to people's consumption of red wine.
The key word, though, is moderation. In 1997, the World Health Organisation concluded that the reduced risk from coronary heart disease was found at the level of one drink consumed every second day.