RT Journal Article SR Electronic T1 Improvement of parkinsonian features correlate with high plasma levodopa values after broad bean (Vicia faba) consumption. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 725 OP 727 DO 10.1136/jnnp.55.8.725 VO 55 IS 8 A1 J M Rabey A1 Y Vered A1 H Shabtai A1 E Graff A1 A D Korczyn YR 1992 UL http://jnnp.bmj.com/content/55/8/725.abstract AB Five healthy volunteers and six patients with Parkinson's disease (PD) ate 250 g cooked broad beans after 12 hours without treatment. During the next four hours a substantial clinical improvement was noted, three patients showed severe dyskinesias, and plasma levodopa concentrations rose.