In this study, nutrition therapy was found to be an important variable in the successful treatment of alcoholism. Traditional treatment methods, such as psychological and institutional approaches, social and group therapy, and chemotherapy, are noted. Research on nutritional needs of individuals has led to an orthomolecular concept which holds that each person has unique inherited biological needs. Orthomolecular treatment strives to attain the optimum concentration of all nutrients needed by the body, particularly the brain. The literature on this treatment indicates a 25 percent rate of recidivism, while traditional methods report a 65 to 75 percent rate of recidivism. For this study, a control group of rehabilitation patients received psychotherapy treatments, and an experimental group received both nutritional therapy and psychotherapy. The nutritional therapy consisted of: (1) diet modification; (2) vitamin and mineral supplements; and (3) nutrition education. One month after the treatment, no significant differences between the two groups were found in psychological, medical, and self help tests. However, six months after the treatment, 81 percent of the experimental group reported that they were not drinking, compared to 38 percent of the control group. A combination of psychotherapy and orthomolecular therapy shows promise of success far above that which is currently experienced using traditional methodology. If rehabilitation is to be effective, the physiological basis of antisocial behavior must be recognized. (FG)