zinc Deficiency
• Zinc is a trace mineral essential to all toms of life because of it fundamental role in gene expression, cell development replication (Hambridge 2000).
• severe or clinical aime deficiency was delined last century, au a condition characterized by Bhort stature, hypogonadism, impaired immune function, skin disorders, cognitive dysfunction and anorexia (Prasad 1991)
• Although severe zinc deficiency is considered rare, moderate zinc deficiency is likely prevalent throughout the world today (Sandstead 1991).