Vitamin D influences immunity, bone health and testosterone levels.  The vitamin D receptor (coded for by VDR) is important for  many processes associated with vitamin D.  Variations in the VDR gene that FitnessGenes test for have been associated with skeletal muscle strength.  


 

Global population distribution:

Source: 1000 Genome Project.  Global averages for both sexes

VDR: CC

47%

VDR: CT

40%

VDR: TT

13%

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