Remember that if you have dark skin it takes longer to get 20 k and black skin five times longer that white skin. Just a fact.
Vitamin D utilizes magnesium. You don't want to go without. Just a fact. Read my "about" for reasons.
Read.
https://www.preprints.org/manuscript/202003.0235/v1?fbclid=IwAR3aL2ljr6KgZvjOk8S1Q0_lK62p7lVW_MlI2EnqdzCxINy0LyotJhJuYYs&utm_source=GRH+Vitamin+D+Coronavirus+Paper+Preprint+Friday+3%2F20&utm_campaign=Newsletter&utm_medium=email
Be well and prosper!
BB