Contamination of air, water, soil, and food products are the major cause for the entry of harmful elements into human body. Results also showed that Cd, Cu, Pb contents in hair and nail of female subjects are more in junk food consumers taking from street food venders and restaurants. For man food forms the major non occupational source of exposure to heavy metals. Although human body has got homeostatic mechanism that enable them to tolerate, small fluctuation in the, intake of such metals above and below certain permissible or recommended levels will have devastating acute and chronic...