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Facts of Life

Facts of Life:
Issue Briefings for Health Reporters
Vol. 8, No. 12
December 2003

Potential Health Benefits of Moderate Drinking

The Issue

The Facts

No Prescription for Alcohol?

Expert Sources

References

The Issue:

Some medical remedies walk a fine line between lethal poison and healing potion. (1) Doctors know, for instance, that drugs like blood thinners have a narrow “therapeutic window” where slightly altered doses can harm patients. Could alcohol fall into this category of friend and foe? Some studies suggest that moderate drinking may benefit cardiovascular health.

What’s in a Dose?

Most agree on a definition of moderate drinking: an average of one or two drinks a day for men and one drink a day for women who are not pregnant. (One drink is 12 ounces of beer, 4 ounces of wine or 1 ounce of 100-proof liquor.) (2) But some studies suggest that it’s not the amount but the pattern of drinking that confers benefits. Moderate drinkers tend to consume a little every day, rather than having weekend binges. Researchers are still teasing out the ingredients that underlie alcohol’s benefits. And doctors vary on whether moderate alcohol use should be recommended only for those at risk for heart disease or to a wider spectrum.

Lifestyles of the Cocktail Set

Not all researchers are convinced that alcohol should be part of healthy living. They point out that exercise, proper diet and cholesterol-controlling drugs have the same effect as alcohol without potential for abuse. Others say moderate drinkers may have lifestyle factors — like a varied diet or money for regular checkups — that make it hard to determine alcohol’s role in good health.

The Facts:
  • A 12-year study of 38,077 men found that those who drank three or more times a week had a reduced risk of heart attack compared with men who drank less frequently. (6)
  • Women who drink an average of half a drink a day have a 14 percent lower risk of developing high blood pressure than nondrinkers, but those who drink more than one and half drinks a day can raise their risk of hypertension by 20 percent. (11)
  • A 2001 study found that moderate drinkers (those who had at least seven drinks a week) had a 32 percent lower risk of dying after a heart attack than those who did not drink. (3)
  • Moderate drinking has been linked to a decreased risk of heart failures other than heart attacks in older people. (4)
  • Light-to-moderate drinking may slow stiffening of the arteries with age, a phenomenon that can raise systolic blood pressure over time. (5)
  • One to two alcoholic drinks per day can increase levels of “good” cholesterol by 12 percent on average, an increase similar to that seen with exercise and certain medications. (7)
  • The heart-healthy effects of moderate drinking may stem from regular consumption rather than infrequent binges, according to a 2003 study of moderate drinking among black men. (8)
  • Seniors age 65 and older who drank more than 15 drinks a week were 41 percent less likely to have silent strokes than abstainers, but were at greater risk for brain shrinkage, a 2001 study concludes. (2)
  • A British survey suggests that alcohol’s health benefits are wasted on the young: Among men younger than 35 and women younger than 55, light drinkers had a higher risk of death than abstainers. Alcohol-related injuries may explain the trend. (9)
  • White or red? A study of 1,565 adults gives the edge to white wine when it comes to boosting lung capacity and function. (10)
  • Moderate drinkers may be more likely than lifelong abstainers to seek preventive health care and engage in other healthy behaviors, according to a 2001 survey. (12)
  • Harvard researchers found a slight reduction in Parkinson’s disease rates among moderate beer drinkers, but the effect was so slight that the researchers could not verify beer drinking as the protective factor. (13)

No Prescription for Alcohol?

Despite studies connecting moderate drinking to improved cardiovascular health, few physicians recommend a half-glass of wine with dinner as a prescription for better health. This silence could be a big mistake, says Curtis Ellison, M.D., of the Boston University School of Medicine.

“The current data are so strong that it is incumbent on each physician to inquire into the drinking habits of their patients, and if there are no contraindications, to make them aware of the research on the benefits of moderate drinking,” he says.

Ellison argues that there is enough evidence to include moderate drinking in the familiar litany of lifestyle recommendations: Don’t smoke, be active, maintain a healthy weight and eat a balanced diet.

But other researchers think it may be premature to elevate alcohol to that status.
“ There is insufficient information to encourage patients who do not drink alcohol to start,” says Ira J. Goldberg, M.D., of Columbia University College of Physicians and Surgeons.

Goldberg says “nothing has changed” since he wrote a New England Journal of Medicine editorial (14) this year cautioning against alcohol as preventive medicine.

Few physicians would recommend a drug like alcohol that reduces the risk of heart attack by 25 percent to 50 percent, “but that would result in thousands of additional deaths per year due to cancer, motor vehicle accidents and liver disease,” he wrote.

Ellison disagrees, saying it is unlikely that a recommendation for moderate drinking would lead to an increase in alcohol abuse and health problems.

In fact, he says, a frank discussion of alcohol’s risks and benefits might help some heavy drinkers “learn a healthier pattern of drinking.”

“We’re what’s known as a temperance community,” Ellison says. “We consider alcohol as ‘let’s get drunk’ or ‘abstain’ and nothing in between.”

“The danger is in not including alcohol in a healthy lifestyle,” he asserts.

The two agree that alcohol’s potential benefits need to be confirmed by a randomized clinical trial.

Goldberg says that “such data are especially important if the therapy has potentially adverse effects.” He notes that a randomized trial could help pinpoint whether drinkers get health benefits from alcohol or whether they just lead healthier lives.

But Ellison says researchers, including himself, have had problems getting funding for such a trial.

“The NIH up to now has been worried about doing anything that might make alcohol come up looking good,” he says.

The health community’s attitude may be changing. Ellison says a draft statement recently circulated among researchers by the National Institute on Alcoholism and Alcohol Abuse makes some favorable recommendations about moderate drinking.

.

Expert Sources:

Ira J. Goldberg, M.D.
Columbia University
College of Physicians & Surgeons
(212) 305-5961
ijg3@columbia.edu

R. Curtis Ellison, M.D.
Boston University
School of Medicine
(617) 638-8080
ellison@bu.edu

Kenneth Mukamal, M.D.
Beth Israel Deaconess Medical Ctr.
(617) 667-4476

Carla Green, Ph.D., M.P.H.
Oregon Health
and Science University
(503) 494-4630
greenc@ohsu.edu


References

1. Kaiser, J. (2003) Hormesis: Sipping From a Poisoned Chalice. Science, 302, 376-379.

2. Mukamal, K.J. et al. (2001) Alcohol consumption and subclinical findings on magnetic resonance imaging of the brain in older adults: The Cardiovascular Health Study. Stroke, 32, 1939-1946.

3. Mukamal, K.J. et al. (2001) Prior alcohol consumption and mortality following acute myocardial infarction. Journal of the American Medical Association, 285, 1965-1970.

4. Abramson, J.L. et al. (2001) Moderate alcohol consumption and risk of heart failure among older persons. Journal of the American Medical Association, 285, 1971-1977.

5. A drink a day takes some arterial stiffness away, American Heart Association Scientific Sessions news release, Nov. 12, 2001. http://www.eurekalert.org/pub_releases/2001-11/aha-ada110201.php

6. Mukumal, K.J. et al. (2003) Roles of drinking pattern and type of alcohol consumed in coronary heart disease in men. New England Journal of Medicine, 348, 109-118.

7. Goldberg, I.J. et al. (2001) Wine and your heart: A science advisory for healthcare professionals from the Nutrition Committee, Council on Epidemiology and Prevention, and Council on Cardiovascular Nursing of the American Heart Association. Circulation, 103, 472-475.

8. Sempos, C.T. et al. (2003) Average volume of alcohol consumption and all-cause mortality in African Americans: The NHEFS Cohort. Alcoholism: Clinical and Experimental Research, 27, 88-92.

9. White, I.R. et al. (2002) Alcohol consumption and mortality: Modeling risks for men and women at different ages. British Medical Journal, 325, 191-194.

10. Schunemann, H.J. et al. (2003) Beverage specific alcohol intake in a population-based study: Evidence for a positive association between pulmonary function and wine intake. BMC Pulmonary Medicine, 2, 3-7.

11. Thadhani, R. et al. (2002) Prospective study of moderate alcohol consumption and risk of hypertension in young women. Archives of Internal Medicine, 162, 569-574.

12. Green, C.A. and M.R. Polan (2001) The health and health behaviors of people who do not drink alcohol. American Journal of Preventive Medicine, 21, 298-305.

13. Hernan, M.A. et al. (2003) Alcohol consumption and the incidence of Parkinson's disease. Annals of Neurology, 54, 170-175.

14. Goldberg, I.J. (2003) To drink or not to drink? New England Journal of Medicine, 348, 163-164.

 

The Center for the Advancement of Health is an independent nonprofit organization that promotes greater recognition of how psychological, social, behavioral, economic and environmental factors influence health and illness. The Center advocates the highest quality research and communicates it to the medical community and the public. The fundamental aim of the Center is to translate into policy and practice the growing body of evidence that can lead to the improvement and maintenance of the health of individuals and the public. The Center was founded by the John D. and Catherine T. MacArthur Foundation and the Nathan Cummings Foundation, which continue to provide core funding. Funding for this series was provided by the Robert Wood Johnson Foundation.

For Information Contact:
Kristina Campbell
Editor, Health Behavior News Service
Center for the Advancement of Health
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© Copyright 2003, Center for the Advancement of Health

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