Coffee, Lower Type 2 Diabetes Risk Tied
But Researchers Aren't Ready to Recommend Coffee for Diabetes Prevention
WebMD News Archive
July 5, 2005 --
But don't count on a daily jolt of java to fend off diabetes just yet.
The researchers reporting the finding aren't advising coffee as a diabetes
They say they found support for the idea that "habitual coffee
consumption is associated with a substantially lower risk of type 2
However, more studies are needed, they write in The Journal of the
American Medical Association.
Grounds for Research
One of the researchers was Rob M. van Dam, PhD. He works in the nutrition
department at Harvard School of Public Health.
He and his colleagues didn't do a new experiment. Instead, they reviewed 15
past studies of coffee and type 2 diabetes.
Nine studies were done over a long time -- six to 20 years. They included a
combined total of more than 193,000 people in the U.S. and Europe.
People who drank the most coffee had the lowest risk of type 2 diabetes.
They downed at least six or seven cups of coffee per day. They were 35% less
likely to develop type 2 diabetes as those who drank less than two cups of
Those who drank four to six cups per day had a 28% lower risk of type 2
diabetes, compared with people who drank the least coffee, say the
Similar patterns were seen in six other studies. Those were one-time-only
checks; they didn't track diabetes risk over time. More than 17,000 people took
part in those projects.
Filtered, Instant, Decaf Brews
Been in a coffee shop lately? If so, you've seen the array of coffee
If coffee has some advantage against diabetes, does it matter what kind you
The findings mainly reflect consumption of drip-filtered coffee. The studies
didn't have as many drinkers of instant or unfiltered coffees, say the
What about decaf coffee? The European studies didn't distinguish between
But decaf coffee was associated with lower type 2 diabetes risk in two U.S.
studies, say the researchers.