Vitamin D Status Descriptive and Prescriptive Analysis Pre, Amid, Post- COVID-19: A Case Study

There has been an emphasis on the role of vitamin D levels in the performance of the human immune system in combating diseases like COVID-19.This paper analyzes the vitamin D status pre-, amid, and post-COVID-19 and considers factors, such as age, gender, and sunny months.In this regard, a descriptive and prescriptive analysis is conducted in a case study using big data involving 420710 records collected from 2016 to 2023.Results showed most under-study people, particularly men, and individuals aged 4 to 35, suffer from vitamin D insufficiency.In addition, the mean vitamin D status of people settled in the under-study region lost its positive trend post-COVID-19 which began before and continued during COVID-19, implying the degrade of vitamin D among the public.Although the vitamin D status of fatal children and elders is much more pleasant than other age groups, a considerable toxic status has been seen among them.Additionally, several prescriptions are proposed to enhance the vitamin D status in the case study.