ABSTRACT The study aims to evaluate the effect of food chain mediated chronic exposure to arsenic and cadmium (singly and combined) on the level of reduced glutathione (GSH) and the activity of glutathione S-transferase (GST) in brains of rats. Fortymale Wistaralbino rats were fed with a diet containing fish fed with normal feed in water contaminated with 0.4 mg/100 ml cadmium (group B), arsenic (group C) and cadmium + arsenic (group D) respectively for three months. The control rats�...