Magnesium is needed by Vitamin D in 8 places - 2013 Created January 2016 On this page Chart from Magnesium increases Vitamin D and decreases mortality - 2013 See also VitaminDWiki Magnesium and Vitamin D very synergistic – Aug 2013 Asthma severe when both Vitamin D AND Magnesium are low – Oct 2016 Magnesium is vital to Vitamin D in 4 places (maybe 8) – March 2018 Tags: Magnesium