Since the early 1990s, researchers have found that red wine can boost heart health and protect against cardiovascular disease.
In fact, earlier this year,
a massive study
of nearly 15,000 men and women found that consuming up to seven drinks a week reduced risk of heart failure by 20 percent in men and 16 percent in women compared with those who didn't drink at all.
Not all researchers agree, however, that red wine confers much, if any, benefit on cardiovascular health.
One study released last year at a meeting of the European Society of Cardiology found that red wine only prevented cardiovascular disease in those who already exercised.
Another published in The BMJ
found that individuals who had a specific gene that leads to lower alcohol consumption saw cardiovascular benefits simply because they were less inclined to drink excessively.
The only point of consensus among these studies is that to have any benefit at all wine should be consumed in moderation. In fact,
one study released in 2008
found that while a single drink can benefit the heart and blood vessels, a second glass completely eliminates those positive effects.
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