Table 1.

Role of Zn in human organ systems

Organ Systems	Role of Zn	References
Cardiovascular	A cardio protective role reduces risk of atherosclerosis	Choi et al. (2018)
Integumentary	Skin health, wound healing and act as antioxidant	Ogawa et al. (2018)
Reproductive	An important role in the formation and maturation of spermatozoa for ovulation and fertilization	Kumar and Singh (2016), Baltaci et al. (2019)
Nervous	The modulator of neuronal excitability, an important role in neuronal metabolism and modulator of synaptic activity	Gower-Winter and Levenson (2012), Prakash et al. (2015)
Respiratory	Reduces the incidence of viral and respiratory tracts infection	Wessels et al. (2020)
Endocrine	Thyroid hormone metabolism and activity of insulin	Baltaci et al. (2019)