Genes evolve to adapt to excess or low vitamin D (Eskimo, Reindeer, etc.)

Note: It probably takes many 1,000's of years for the genes to adapt

Reindeer genes are 20X better at activating Vitamin D than other mammals

Biological adaptations in the Arctic cervid, the reindeer (Rangifer tarandus) - June 2019

📄 Download the PDF fromSci-Hub via VitaminDWiki

image

POR = P 450 O xido r eductase


Suspect also that Reindeer have gene modifications which increase the Vitamin D half life from ~2 months to > 5 months

Genetics category listing contains the following

{include}