<prompt> An agricultural labourer presented with progressive spastic paralysis is diagnosed of having neurolathyrism. It results from consumption of:AflatoxinBOAAPyruvic acidSanguinarine  <response>: Lathyrism results due to ingestion of chick peas Lathyrus sativus containing the excitotoxin beta-N-oxalylamino-l-alanine BOAA. Lathyrus sativus is commonly known as Khesari dhal. Lathyrism is a neurologic syndrome characterized by the relatively acute onset of pain, paresthesia, and weakness in the lower extremities, progressing to a permanent spastic paraplegia. Diets containing over 30 of this dhal if taken over a period of 2-6 months will result in neurolathyrism. Ref: Textbook of Preventive and Social Medicine by K Park, 19th edition, Page 512. 