The document discusses a 1959 case study of adulterated cooking oil in Morocco that poisoned over 10,000 people. The oil had been adulterated with jet engine lubricant containing tricresyl phosphate, an organophosphate compound. TCP is toxic and caused nausea, vomiting, paresthesias, diarrhea, headaches, abdominal pains, vertigo and drowsiness in those exposed. The adulteration occurred to increase profits by reducing purity and adding inferior substances. Adulteration can harm public health and lacks nutritional value. Various foods are intentionally or incidentally adulterated for economic gain.