Dr. Naomi Wolf - Opinion
There are probably more people that are Vitamin-D3 deficient. It is activated by magnesium and both are usually needed. It is called the Vitamin-D3 deficiency pandemic by many researchers. Estimated at over 80% every winter.
https://cholecalciferol.miraheze.org/wiki/Kalle_Pihlajasaari#Tips_for_taking_prophylactic_Vitamin-D3
There are probably more people that are Vitamin-D3 deficient. It is activated by magnesium and both are usually needed. It is called the Vitamin-D3 deficiency pandemic by many researchers. Estimated at over 80% every winter.
https://cholecalciferol.miraheze.org/wiki/Kalle_Pihlajasaari#Tips_for_taking_prophylactic_Vitamin-D3