Vitamin D is an important ingredient that helps keep human body fit and healthy. It serves multiple functions in a human body and its deficiency can cause significant discomforts to humans. According to Lee et.al. (2008), deficiency of Vitamin D is common and prevalent in about 30% to 50% of population. The study aims at understanding the normal physiology of Vitamin D and its functions in a human body. The paper is divided into three sections. The first section describes the normal physiology of Vitamin D. The second section discusses its function. The third section concludes the paper.
Physiology of Vitamin D