I found this video on Vitamin D (actually a steroid hormone affecting 1000s of physiological processes) interesting:
https://invidio.us/watch?v=uc815fQn8iY #ergocalciferol #cholecalciferol

I've been telling my friends to take Vitamin D3. As is expected from my friends, they want some research to support my suggestion. Here's an open access article
"Vitamin D alleviates lipopolysaccharide‑induced acute lung injury via regulation of the renin‑angiotensin system" https://www.spandidos-publications.com/10.3892/mmr.2017.7546 #calcitriol #cholecalciferol #VitaminD #acutelunginjury

Sunshine – Vitamin D [1,25(OH)2D3] and Immune Health

https://proteinpower.com/sunshine-vitamin-d-and-immune-health/
#cholecalciferol #immunesystem #health #VitaminD