 It has now been shown that the month by month incidence of konzo is significantly correlated with the percentage of children with high urinary thiocyanate content, which is a measure of their cyanide intake.The importance of an adequate supply of protein sulfur amino acids is shown from three unrelated konzo epidemics in Mozambique, Tanzania and DRC.People of the same ethnic group living only 5 km away from those with konzo had near zero konzo prevalence, because in Mozambique they lived near the sea, in Tanzania they lived near Lake Victoria and had access to fish and in DRC they lived near the forest and had access to animal protein.