Oh
Marvelous Mediterranean
by Nathan Johnsonic
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You
know that moderate consumption of red wine can prevent heart
disease, but how much is right for you?
While
the title of this article is clearly borrowed from an old
proverb, its message is no less important than the original.
Most doctors and scientists agree that drinking a few glasses
of wine per week substantially decreases the risk of developing
heart disease. Studies have shown that the populations bordering
the Mediterranean, who consume a great deal more red wine
than the people of Northern Europe and the United States,
have a much lower incidence of heart-related ailments and
diseases.
Over
the past decade, much attention has been given to the so-called
"French Paradox." In France, whose people prefer
that their food be literally dripping with fat, the rate of
heart disease is no more than one third that of the United
States.
A few remaining skeptics point to other factors that may account
for the astoundingly low rate of heart disease among the French,
such as the healthy-hearted diet of Mediterranean populations,
which includes a high intake of fruits, vegetables, and other
heart-friendly foods (Part 1 of this series, which appeared
in our January/February issue, noted the virtues of olive
oil.) Skeptics also point to the fact that a large percentage
of red wine drinkers in the U.S come from high-income backgrounds,
a condition commonly associated with good overall health.
But in France and throughout the entire Mediterranean basin,
the situation is different; rich and poor alike share in the
ancient custom of drinking wine with their meals.
The
Secret: Flavonoids
The
grapes used to make red wine contain phenolic chemical compounds,
one of which, flavonoids, have been found to be particularly
helpful in aiding high density lipids (hdl), or "good
cholesterol." How do these little heart-savers work?
"The flavonoids and [other] phenolic compounds are the
active agents in the red wines . . . [and] the hdl [good cholesterol]
is the response to the flavonoids," explains San Diego
cardiologist G. Douglas Moir, MD, a fellow of the American
College of Cardiology. Flavonoids help prevent low density
lipids (ldl), or "bad cholesterol," from binding
to the interior walls of arteries, a process that lessens
the risk of total blockage of the artery.
The
good news if you don't drink is that flavonoids are found
in a variety of fruits and fruit juices. However, because
exposure to oxygen drastically reduces the number of flavonoids,
their concentration is much higher in wine- and in particular,
red wine.
Just
What the Doctor Ordered?
With
all the hype surrounding red wine, should you hop off the
exercise bike and run to the nearest liquor store? Not necessarily.
Although doctors have generally agreed for years on the health
related benefits of red wine, many have been reluctant to
"prescribe" wine as a preventative measure. For
one, doctors feared that North American and Northern European
consumers, who have been shown to be more prone to drinking
extremes (binge drinking on the one hand, total abstinence
on the other), might take the news about wine as an excuse
for abuse.
In
addition, because it is so important that certain groups avoid
any alcohol intake whatsoever, some doctors still hesitate
to encourage even moderate alcohol consumption. The best way
to determine whether you should consider adding red wine to
your diet is by talking to your doctor. "It's a decision
[patients] ought to discuss with their doctors, in case [they
have] other medical conditions," says Dr. Moir. "There
are a whole host of conditions that could be aggravated by
alcohol, even in modest amounts." People who should avoid
drinking alcohol in any amount include (among others) pregnant
women, people who don't drink due to moral or religious reasons,
alcoholics and addicts of other drugs, and people with liver
or skin problems.
Nevertheless,
because the benefits of red wine are now widely recognized
within the medical community, the Bureau of Alcohol, Tobacco,
and Firearms now allows wine makers to promote these benefits.
And doctors are increasingly prescribing red wine as a preventative
means to reduce the risk of heart disease.
Assuming
your doctor gives you the go-ahead, the best approach for
integrating red wine into your diet is to practice consistency
and moderation. Why? As Dr. Moir points out, the first clue
that red wine saved lives came through a series of studies
that looked at drinking patterns. Moderate drinkers were defined
as those people who consumed one to two drinks daily. "Be
it a shot of whiskey or a glass of wine," explains Dr.
Moir, those who drank only one or two drinks per day "had
a lower incidence of stroke . . . heart attack, (and) other
cardiovascular events than either abstainers or heavier drinkers."
In a nutshell, studies consistently demonstrate an important
statistic; while moderate wine drinkers experience a number
of benefits, drinking in large quantities can have the opposite
effect.
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