Could a Gene Mutation be the Cause of your Vitamin D Deficiency? July 14, 2017 jaramilh 7 Comments Vitamin D is an essential nutrient for our bodies. Having an MTHFR gene mutation means that the body has the……... FREE - Unlimited Blogs Membership Required You must be a FREE - Unlimited Blogs member to access this content.Join NowAlready a member? Log in here Continue Reading →