Oromandibular dystonic movements may present a type of focal or segmental dystonia. They often cause the malnutrition problems and social isolation. The aim of the study was to evaluate the efficacy of Botulinum Toxin type A treatment in patients with oromandibular dystonia with estimation of nutrition status. 15 patients with oromandibular dystonia, 9 women and 6 men, mean age 56 years old, were investigated. In all patients Botulinum Toxin type A was administrated intramuscularly under the EMG control. In 14 patients the improvement was significant and in 11 increase body mass was observed within 6 month after injections. Botulinum Toxin type A is useful in treatment of oromandibular dystonic movements in patients with malnutrition.