Healthy Brew: Beer May
Actually Be Good for You
By Ken Wells / Wall Street Journal (www.wsj.com) 2003
HERE'S A GOOD bar joke: Beer is good for you-even
better for you than red wine. Here's what's funnier: It could actually be true.
After more
than 20 years of research and scores of studies on the effects Of moderate alcohol consumption on heath, beer is slowly
bubbling to the top as a beverage that not only lifts spirits but delivers
protection against major ailments such as heart attacks, stroke hypertension,
diabetes and dementia.
The data
seem so compelling that the National Beer Wholesalers Association, an
Alexandria, Va., trade group representing the nation's beer distributors,
recently put on an oxymoronic sounding "health and beer'' seminar and put
out a press release that declared: "Eat right, exercise and drink a beer a
day may be the way to keep the doctor| away.''
Julie
Bradford, editor of A1l About Beer Magazine, says slightly less effervescently:
"Well, we're not saying that beer is the new wonder drug or suggesting
that people take two beers and call us in the morning." But evidence for
beer's healthy side effects-assuming moderate consumption-is strong enough to
cause champions of beer like Ms. Bradford to start insisting that the wine
folks put a cork in their claims that Beaujolais is superior to Bud.
Ms.
Bradford's magazine, published in Durham, N.C., and delivered to 25,000
subscribers every other month, is an unabashed beer booster, but she has
company in more dispassionate places. Norman D. Kaplan, a professor of internal
medicine at the University of Texas Southwestern Medical Center in Dallas, has
studied alcohol's impact on health as part of his 40 years of research into the
causes and treatment of hypertension. He concludes that "the benefits of
drinking moderate amounts of alcohol is well beyond contention."
As for
beer's specific virtues, Dr. Kaplan cites two recent large-scale studies: in
one, a look at 79,000 female nurses showed that those who drank moderate
amounts of beer had less hypertension than did nurses who drank either wine Or
spirits. He also points to a survey of 128,934 adults in the Kaiser Permanente
managed-care system.
It showed
that male beer drinkers among the group were at a statistically significant
lower risk Of coronary-artery disease than were men who drank red wine, white
wine Or spirits.
Dr. Kaplan
says new evidence also suggests that beer, because of mechanisms that "are
not all clearly under- stood,'' may help increase bone density, thus decreasing
risk of fractures. And it also could raise by 10% to 29% the so called ''good
cholesterol'' levels in some people, thereby helping to ward off coronary-heart
disease and related afflictions such as dementia. Beer, he adds. is also rich in B-vitamins and fixates (a form of water-soluable
B-vitamin found in green leafy vegetables), both of which help keep
homocysteine blood levels in check. Homocysteine is a chemical that, in
elevated amounts, has been linked to an increased risk of heart disease.
For those
reasons Dr. Kaplan says, ''beer drinking has equal or perhaps more benefit''
than wine or spirits. As for the earlier wine claims: ''The wine people have
done a major snow job'' in peddling the notion that wine is superior to beer of
spirits, he says.
Considering
that there are an estimated 80 million regular beer drinkers in America, the
emergence of beer as a health palliative is a significant public-relations
boost for the $55 billion-a-year beer industry. Of course, beer makers are
constrained from directly touting any such benefits on labels or in
advertising, hence the efforts by trade groups like the NBWA to spread the
word.
But before
Joe Six Packs rush put to quaff a few in celebration, there are major caveats.
For one, researchers define moderate drinking as one drink a day for women and
up to two a day for men (a drink itself being a 12-ounce| beer, a five-ounce
glass of wine or 1.5 ounces of distilled spirits.)
Conversely,
studies show that binge drinking-the consumption of six or more drinks in a
day-offers no benefits and puts drinkers at increased risk for obesity and
certain types of cancers, liver failure and stroke.
Moreover,
the way beer is often consumed in the U.S.-in heavy-drinking venues like
football games or frat parties, for example-may make beer's health claims less
useful than they might appear. "The binge factor doesn't help your heart
at all'' and cap even lead to immediate problems, such as heart arrhythmias,
says Margo Denke, a medical colleague of Dr. Kaplan's at Texas Southwestern
Medical School who has done her own health-and-alcohol studies. "The
science makes sense; beer is distilled from hops and barley and some of the
beneficial nutrients are concentrated and passed along,” she says.
Eric Rimm,
an associate professor of epidemiology and nutrition at Harvard's School of
Public Health, believes the benefits of moderate drinking may come from the
ethanol component in alcohol. "True beer has B vitamins, but a single beer
provides perhaps 2 to 6% of the recommended daily requirement. To think you can
get your RDA Of that from beer is probably inappropriate," he says.
But Dr.
Rimm says the prevailing thinking is that ethanol has significant antithrombotic
or anticlotting effects similar to aspirin: Health experts, for perhaps a
decade, have recommended an aspirin-a-day regimen for people over 50 to help
prevent Strokes and heart disease.
More
recently, Dutch and Danish researchers looked at beer and wine side by side in
studies; in the Dutch sample, in which participating men drank four glasses of
either beer, wine or spirits over three months, beer seemed to be better at
helping to control homocysteine levels; a similar Danish study found no
distinguishable differences.
The wine
folk seem unperturbed by the encroachment of beer into what was once their
exclusive PR domain. "We stand by the studies'' that link moderate wine
consumption and health, says Juanita Duggan, head of the Wine and Spirits
Wholesalers of America, a Washington, D.C., trade group. "And besides, our
products will al- ways taste better than theirs."