Often studies like this break down alcohol consumption by type. Here is a review of several studies that concludes that "a substantial portion of the benefit i

Often studies like this break down alcohol consumption by type. Here is a review of several studies that concludes that "a substantial portion of the benefit is from alcohol rather than other components of each type of drink" http://www.ncbi.nlm.nih.gov/pubmed/8605457 http://www.ncbi.nlm.nih.gov/pubmed/8605457