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Coffee is one of the most widely consumed beverages in the world; more than 50 percent of Americans drink it at the average rate of 2 cups per day.Led by Hyon K. Choi, of the University of British Columbia in Vancouver, Canada, the current study was based on the U.S. Third National Health and Nutrition Examination Survey, conducted between 1988 and 1994.Coffee and tea consumption were determined based on responses to a food questionnaire that assessed intake over the previous month.The results showed that levels of uric acid in the blood significantly decreased with increasing coffee intake, but not with tea intake.

Coffee is one of the most widely consumed beverages
in the world; more than 50 percent of Americans drink
it at the average rate of 2 cups per day. Because of this
widespread consumption, its potential effects have
important implications for public and individual health.
Led by Hyon K. Choi, of the University of British
Columbia in Vancouver, Canada, the current study was
based on the U.S. Third National Health and Nutrition
Examination Survey, conducted between 1988 and
1994. It included over 14,000 men and women at least
20 years old who consented to a medical exam in
which blood and urine specimens were obtained.
Coffee and tea consumption were determined based
on responses to a food questionnaire that assessed
intake over the previous month. Researchers
estimated the amount of caffeine per cup of coffee or
tea using data from the U.S. Department of Agriculture.
The results showed that levels of uric acid in the blood
significantly decreased with increasing coffee intake,
but not with tea intake. In addition, there was no
association between total caffeine intake from
beverages and uric acid levels. These results were
similar to those found in the only previous study on the
topic, which was conducted in Japan. Interestingly,
there was an association between decaffeinated
coffee consumption and uric acid levels.