Alcohol and Alcoholism Vol. 35, No. 1, pp. 49-51, 2000
© 2000 Medical Council on Alcoholism
A PILOT INVESTIGATION OF THE EFFECT OF TRYPTOPHAN MANIPULATION ON THE AFFECTIVE STATE OF MALE CHRONIC ALCOHOLICS
Hull and East Yorkshire Hospitals NHS Trust, Institute of Rehabilitation, 215 Anlaby Road, Hull HU3 2PG and
1 Division of Psychiatry, Kent Institute of Medicine and Health Sciences, University of Kent at Canterbury, Canterbury, Kent CT2 7PD, UK
Received 12 January 1999; first review notified 18 March 1999; accepted 25 April 1999
A pilot study was conducted to investigate the hypothesis that dietary tryptophan manipulation would influence self-report affective status in alcoholic males. No significant effect of dietary manipulation was observed on the tryptophan/large neutral amino acids ratio or psychological indices of affect. The notion that dietary manipulation may be utilized in improving mood state in alcoholic males was not supported.