Mehri Aliasgharpour - Ministry of Health & Medical Education-Reference Health Laboratory-Faculty of Clinical Biochemistry Dept

Vitamins as a class of essential nutrients in trace quantities, are required for normal growth, and reproduction. They are studied in two categories; fat soluble vitamins and water soluble vitamins that are functional in many ways to maintain healthy immune system response for disease prevention, and to improve human health. The main aims of the present review are on vitamins discovery and classifications, fat soluble vitamins biological functions, conditions of deficiency/toxicity, and their possible effect/s regarding COVID-۱۹ infection. For this purpose new advances on fat soluble vitamins were studied and related literatures were assessed. Investigations indicated most vitamins were identified related to the diagnosis of the disease associated with their deficiency. Furthermore, fat soluble vitamins use especially vitamins A & D supplements during COVID-۱۹ days in light of their safe and therapeutic range is recommended. However, their possible preventive role and/or supportive therapy against COVID-۱۹ are yet controversial. In summary, in the absence of specific treatment for COVID-۱۹ to date, as well as reducing the risks for other deficiency conditions, looking for alternative approaches to reach for a healthy and balanced diets like improving the availability of these vitamins for all especially for the most vulnerable groups could be beneficial.

Fat Soluble Vitamins- Deficiency- Toxicity- Covid-۱۹ Infection- Immune System.