Vitamin D3 and the Importance of Zinc


While interactions between Vitamin Di and Zinc are not well studied, Vitamin D Receptors (VDRs) are known to have zinc fingers in their DNA binding domains:

And studies seem to suggest that zinc is important for proper Vitamin D Receptor function:
Studies also seem to suggest that zinc is very important in the immunei response against infectionsi:

Here's a news article on a recent study suggesting that zinc induces higher T cell activation, important for fighting viral and bacterial infections: