Many people
believe that a glass of wine with dinner is good for your health and will help
protect from heart disease. But this could well be a myth.
A review of the
evidence finds little support for the notion
that moderate drinking helps prevent heart disease, according to new
r
Over the years,
studies have found that adults who drink moderately have lower heart disease
than non-drinkers – which has spurred the widespread belief that alcohol in
moderation does the heart good.
But analysis of 45
previous studies reveals the flaws in that assumption. The main issue is that
"non-drinkers" may actually be former drinkers who quit or cut
down because of poor health.
In
other words, rather than abstaining leading to poorer health, non-drinkers may
have chosen to abstain because their health was already poor.
In
their analysis, the researchers found that overall, "current"
moderate drinkers (up to two drinks per day) did have a lower rate of heart
disease death than non-drinkers.
However,
that was not the case in studies that looked at people's drinking habits at
relatively young ages - ages 55 or younger - and followed them to their older
years when heart disease might strike.
Similarly,
studies that accounted for people's heart health at baseline indicated no
benefits from moderate drinking.
By
contrast, "healthy" seniors who
enjoy a glass of wine with dinner, the review suggests, are not
healthy because they drink, but rather older people who are already in good
health are simply more likely to enjoy a glass of wine with dinner because they
have no reason not to.
"We
know that people generally cut down on drinking as they age, especially if they
have health problems," said researcher Tim Stockwell, director of the
Centre for Addictions Research at the University of Victoria, Canada.
"People
who continue to be moderate drinkers later in life are healthier. They're not
sick, or taking medications that can interact with alcohol."
An
additional factor that the review brought to light is education. Non-drinkers
were found to be less educated overall – and education is known to lead to
better health and increased longevity.
"We can't
'prove' it one way or the other," Stockwell said. "But we can say
there are grounds for a healthy skepticism around the idea that moderate
drinking is good for you."
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