Genetic variations in uncoupling proteins (UCP1-3) are thought to lead to differences in the efficiency of one's metabolism and could be one reason why some people seem capable of eating high calorie diets and not get fat while others do.


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Global population distribution:

Source: 1000 Genome Project. Global averages for both sexes

UCP1: CC

42%

UCP1: CT

42%

UCP1: TT

16%

More about UCP1

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