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Young black
women burn fewer calories each day than young white women, according
to researchers at the University of Pittsburgh.
Black adolescents
and women tend to have a higher rate of obesity than white adolescents
and women even if they were at the same weight and had the same
eating and exercise patterns as young girls. Prior research suggested
that the cause might be a lower energy metabolism in the black
women.
Researchers
measured the resting energy expenditure and genetic variations
of 141 young women between the ages of 18 to 21 to test the possible
genetic factors causing the ethnic differences.
In the study
published in the American Journal of Clinical Nutrition, researchers
report that the black women burned 76 fewer calories per day than
the white women, which could cause a difference in weight gain
over a period of time.
Investigators
discovered that black women with a particular gene variation were
more likely to have a slower metabolism than black women without
the gene variation. The gene variation was found in 8 percent
of black women and 22 percent of white women taking part in the
study. The gene variation did not seem to be linked to a slower
metabolism in the white women.
Other sources: American Journal of Clinical
Nutrition
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