Zinc is necessary for the normal function of the immune system & to make the body functions work. It is also needed for the body s enzyme systems. The total amount of zinc in the human adult has been estimated to be Approx. 2 grammes of which more than 80 is found in bone hair & skin & as a component of many biological processes. Interest in zinc nutrition was first shown in 1963 when a study on adolescent boys from the Nile delta was shown to link low zinc intakes with dwarfism an