The sun is not broken & without sufficient amounts of red blood cell (RBC) Magnesium & Cholesterol the body CAN‘T convert UV rays into Hormone D. It’s biochemically NOT possible!

‚Study shows magnesium optimizes vitamin D status‘
December 14, 2018, Vanderbilt University Medical Center

“...Magnesium deficiency shuts down the vitamin D synthesis and metabolism pathway..." https://medicalxpress.com/news/2018-12-magnesium-optimizes-vitamin-d-status.amp?__twitter_impression=true

A randomized trial by Vanderbilt-Ingram Cancer Center researchers indicates that magnesium optimizes vitamin D status, raising it in people with deficient levels and lowering it in people with high levels.