Assessement of effects of cadium chloride exposure on the anaphylaxis reaction to food was done on six week old Swiss and BALB/c female mice. The animals were exposed to cadium as cadium chloride for either three days or six weeks. Intra-peritonal dose of cadium chloride was injected once a day, five days per week for three successive weeks. The animals were then sensitised to cow's milk by force-feeding with cow's milk for three consecutive days. Oral exposure of mice to a high dose of cadium resulted in cytotoxicity of liver and kidney cells. Retardation in growth rate and haematology change were detected. Proliferative response to the T-cell epitope from the circumsporozoite protein of plasmodium falsiparum was decreased in cultures of lymph node cells from cadium chronically treated mice and sensitised with the same peptide. In contrast, an increase of cell proliferation was observed when cow's milk was used instead. Significant increase in Immunoglobulin E level and Anaphylactic reaction dependent on the quantity of cadium exposed were recorded. No protective effect of ascorbic acid or zinc acetate on cadium alteration of immune response was observed / Master of Science (Hons) (Food Science)