Does Black Tea Reduce Diabetes Risk?11/08/12
THURSDAY, Nov. 8 (HealthDay News) -- Rates of type 2 diabetes
are lower in countries where many people drink black tea, a finding
that supports previous research suggesting that regular consumption
of black tea is associated with a reduced risk of diabetes,
according to a new study.
Researchers Ariel Beresniak of Data Mining International, in
Geneva, Switzerland, and colleagues looked at black tea consumption
in 50 countries on every continent in 2009 and compared that to
rates of diabetes and cancer, as well as respiratory, infectious
and cardiovascular diseases in those nations.
Ireland had the highest level of black tea consumption (more
than 4.4 pounds a year per person), closely followed by the United
Kingdom and Turkey. Nations with the lowest levels of black tea
consumption were South Korea, Brazil, China, Morocco and
Statistical analyses showed that diabetes rates were low in
countries with high levels of black tea consumption. There was no
association between black tea consumption and any of the other
health conditions included in the study, according to a journal
"These original study results are consistent with previous biological, physiological and ecological studies conducted on the potential of [black tea] on diabetes and obesity," and provide "valuable additional scientific information at the global level," the researchers wrote.
Black tea contains a number of complex flavonoids that have been
linked with several potential health benefits, the researchers
noted. The brewing process releases these flavonoids.
The number of people with type 2 diabetes will rise from 285
million in 2010 to 438 million in 2020, the International Diabetes
While the study found a mathematical association between black
tea consumption and type 2 diabetes rates, it did not prove a
The U.S. National Institute of Diabetes and Digestive and Kidney
Diseases has more about
type 2 diabetes.
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