freeVitaminDgen
Genetic test to determine the bioavailability of free vitamin D
Vitamin D regulates several biological functions but up to 90% of vitamin D is bound to the vitamin D binding protein (VDBP) being responsible for its transportation.
Less than 1% of the vitamin D only is freely available and therefore biologically active.
By investigating SNPs within the VDBP gene, which are associated with a different affinity to vitamin D metabolites, freeVitaminDgen detects if there is a deficiency of bioavailable vitamin D.
This test is carried out on a sub-contracted basis by an accredited laboratory.