What is your usual residence location? When I was in Australia I had no vitamin D deficiency at any part of my life. I moved to Canada two years ago and suddenl

What is your usual residence location? When I was in Australia I had no vitamin D deficiency at any part of my life. I moved to Canada two years ago and suddenly I was severely vitamin D deficient. And this also means that people with higher melanin residing in northern hemispheres are more at risk.