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Fructose sweetener spurs obesity
Cincinnati -
Another study finds that high consumption of soft drinks and
other sweetened beverages contributes to obesity. But this study,
conducted in mice, suggests that one form of natural sweetener --
fructose -- may be especially likely to encourage weight gain.
In the study, researchers at the
University of Cincinnati allowed mice to freely consume either plain
water or fructose-sweetened water and soft drinks.
The mice that drank the
fructose-sweetened water and soft drinks gained weight, even though
they took in fewer calories from solid food.
By the end of the study, the mice
that consumed fructose-sweetened beverages had 90 percent more body
fat than the mice that consumed water only.
The findings suggest that the total
amount of calories consumed when someone includes fructose in their
diets may not be the only cause of weight gain. Consuming fructose may
actually affect metabolism in a way that leads to more fat storage, at
least in mice, the researchers said.
"Our study shows how fat mass
increases as a direct consequence of soft drink consumption," study
author Dr. Matthias Tschop, associate professor in the University of
Cincinnati's psychiatry department and a member of the Obesity
Research Center at the university's Genome Research Institute, said in
a prepared statement.
"We were surprised to see that mice
actually ate less when exposed to fructose-sweetened beverages, and
therefore didn't consume more overall calories. Nevertheless, they
gained significantly more body fat within a few weeks," Tschop said.
The study appears in the July issue
of the journal Obesity Research. -- Health Day
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