COVID-19:Why its so important to take vitamin D now a days

Hello friends
Its 27th of june 2020 and Today we will discuss in detail why its so important to take a tablet of vitamin D on daily basis in order to strengthen your immune system.
Before that i will briefly talk about a doctor who has explained the strength of our immune system.
The best natural source of vitamin D is sun but if that can not be used then we need to have oral supplementation to decrease its deficiency in body.

Видео COVID-19:Why its so important to take vitamin D now a days канала dr afzal critical care medicine