Research articles recently published from the University of Wisconsin
and Osaka, Japan, indicate that light to moderate alcohol intake
was associated with reduced mortality risk due to coronary heart
disease (CHD) in people who develop diabetes later in life. Compared
to lifetime abstainers a reduction of up to 79% was found in people
who drank up to one drink a day, in the Wisconsin study. The researchers
C.T Valmadrid, M.D., M.P.H, and colleagues concluded, "Our results
suggest an overall beneficial effect of alcohol consumption in
decreasing the risk of death due to CHD in people with older-onset
diabetes."
According to the researchers, the study represents the first prospective
cohort study to examine the relationship between alcohol consumption
and cardiovascular outcomes in diabetic individuals, particularly
important because CHD "remains the leading cause of death in persons
with type 2 diabetes, accounting for about 40% of all deaths."
A statement was issued by the American Diabetes Association noting
that "the study reaffirms the association's position on alcohol
consumption that allows moderate alcohol intake. However, the
same precautions regarding the use of alcohol that apply to the
general public should also apply to people with diabetes."
In an accompanying editorial, M.H Criqui, M.D., M.P.H., and colleagues
acknowledge the favourable findings on moderate consumption and
the reduction of coronary heart disease but caution against a
general recommendation to begin drinking. From the University
of California San Diego School of Medicine, researchers recommend
that advice should be handled on an individual basis, whether
or not the patient has diabetes.
In the second study, the relationship between daily alcohol consumption
and the risk of type 2 diabetes in a large Japanese cohort was
investigated. According to the report, type 2 diabetes affects
about 7 million Japanese individuals for whom lifestyle factors
may be important in the etiology of the disease. The Osaka Health
Study involved 6,362 Japanese men aged 35-61 years who at the
beginning g of the study did not have the following: diabetes,
impaired fasting glucose, hypertension or liver cirrhosis. The
researchers concluded, "Among men with higher BMI (body mass index),
moderate alcohol consumption is associated with a decreased risk
of type 2 diabetes." This conclusion adds to developing research
from other cross-cultural studies that have looked at insulin
levels and insulin sensitivity and found that moderate alcohol
consumption may have protective effects.
Source:Valmadrid CT, et al. Alcohol intake and the risk of coronary
heart disease mortality in persons with older-onset diabetes mellitus. Journal of the American Medical Association, 1999; 282:239-246. Criqui and Golomb. Should persons with diabetes
consume alcohol? (editorial). Journal of the American Medical Association, 1999:282:279-280. Tsumura K, et al Daily alcohol consumption
and the risk of type 2 diabetes in Japanese men. Diabetes Care,
1999;22(9): 1432-1437