Optimal dose of vitamin-D supplement reduces death risk in covid patients – A review

Department of Chemistry, West Bengal State University, Barasat, Kolkata-700 126, India
E-mail: jhimli.sengupta@gmail.com
Manuscript received online 29 November 2020, revised and accepted 27 December 2020

An impasse in the realm of public health has been undergoing since December due to outbreak of COVID-19. As a consequence
of this impasse, different countries are tumbling into an even deeper recession. The life of economically backward people came to a grinding halt on account of the recurrent lockdown. To bear the cost for the treatment of COVID-19 is nearly
to impossible for them. It is well known fact that the best preventive measure against COVID-19 should be vitamin-D supplementation for those who are vitamin-D insufficient or deficient. Nearly 1 billion people worldwide have low level of vitamin-D.
We know vitamin-D plays a vital role to the function of immune system and vitamin-D supplements have previously been proven
safe and effective to reduce the risk of viral respiratory tract infection. Recently, some study have shown a strong relation
between severe vitamin-D deficiency and death rate in COVID-19. It has been recorded that patients with lower level of vitamin-
D had higher risk of death than patients having no deficiency in vitamin-D. Mortality rate is quite high in 20 European
countries and in USA because the people of this countries are vitamin-D deficient. Thus, vitamin-D supplementation can be
a very good preventive treatment against COVID-19.