One Drink or Two?
Wednesday, February 13, 2008
Tara Gidus, MS, RD, CSSD, LD/N

I just read a very interesting study on
alcohol and the potential health benefits. The study was in the February issue of the
American Journal of Physiology, Heart and Circulatory Physiology. They studied the effects of red wine or other alcohol in varying amounts.
They found that the results were the same, regardless of whether people drank red wine or another alcoholic beverage. The potential health benefits are found in the ethanol (alcohol), not just the antioxidants of the red wine. Good news for people who enjoy a beer or mixed drink instead of wine. Alcohol has an effect similar to
taking an aspirin every day in the blood thinning aspect.
The other interesting finding was that there was a big difference between the effect of one drink vs two drinks per day. People who drank one drink per day had blood vessels that were more “relaxed” or dilated, which reduced the amount of work the heart had to do. But, after two drinks, the heart rate, amount of blood pumped out of the heart, and action of the sympathetic nervous system all increased. At the same time, the ability of the blood vessels to expand in response to an increase in blood flow diminished. This counteracted the beneficial effect of one drink of red wine or alcohol.
I usually recommend following the moderation principle for alcohol intake, which is basically one drink for women or two drinks per day for men.
One drink consists of 5 oz wine, 12 oz beer, or 1.5 oz liquor (80-proof). However, this research may make some rethink whether or not to stop after just one drink.
Cheers!
Photo courtesy of istockphoto.comLabels: alcohol, heart health, Tara Gidus
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Should You Drink?
Monday, September 10, 2007
Tara Gidus, MS, RD, CSSD, LD/N

I am sure you have heard about the potential health benefits of alcohol.
Does that mean you should start drinking if you are not someone who normally enjoys a drink?
How much is OK to drink?
Let’s look at it a little bit more closely.
Potential benefits
Numerous studies in the past few years have been touting benefits of drinking. There are three reasons why alcohol has this reputation. One is for the blood thinning aspect of alcohol. Drinking one to two drinks per day is sort of like taking an aspirin every day. It has mild blood thinning aspects to it. The other benefit you hear about is the antioxidants. Red wine has the biggest reputation for this and it is for the resveratrol. However, white wine also has antioxidants and so does beer (barley and hops have antioxidants). Some research has also suggested that drinking alcohol may increase HDL, or good, cholesterol.
Potential Risk
With alcohol there is a definite rule that if a little is good, more is not better. Health risks of drinking alcohol are very well documented, but these risks generally occur when people go above the moderation principle. Health risks include heart disease, liver disease, high blood pressure, stroke, cancer, gallstones, pancreatitis. In fact, a new study was released this week on the potential increased risk of endometrial cancer in women who consume more than two drinks per day. Alcohol abuse can also affect a person’s emotional wellbeing, moods, and relationships.
Moderation
Moderation with alcohol is defined as one drink per day for women and two drinks per day for men. Moderation is if you have this amount each day (or less often). You cannot add up your drinks for the week and have 7 on Friday night and still be within your moderation level. Alcohol is a toxin and health risk increases greatly after consumption of two drinks.
What is one drink?
5 oz of wine
12 oz of beer
1.5 (one shot) of 80-proof distilled spirits (hard liquor)
All of these drinks in these amounts have equivalent amounts of alcohol in them. It doesn’t matter if the wine is white or red, dry or sweet, or if the beer is light or regular.
Bottom line
Enjoy a drink or two if you wish. Do not start drinking because you keep hearing about the potential health benefits. There are other ways to get the benefits without starting to drink. If you want more antioxidants, eat some grapes or other fruits, vegetables, and whole grains. If you want to raise your HDL, get out there and exercise or reduce your body fat. If you think you need the blood thinning benefits, talk to your doctor about starting a low dose aspirin every day.
Cheers!
To read more about alcohol abuse and dependence, click here.
Photo of red wine courtesy of istockphoto
Photo of alcohol equivalents courtesy of Distilled Spirits Council
Labels: alcohol, Tara Gidus
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