Nutrition may be critical for neurodevelopment and can affect the later development of schizophrenia. Recently, a marked reduction in breast-feeding was reported in infants that developed schizophrenia in later life (McCreadie, R.G., 1997. The Nithsdale Schizophrenia Surveys. 16. Breast-feeding and schizophrenia: preliminary results and hypothesis. Br. J. Psychiatr. 170, 334-337). In the present study, we investigated feeding patterns during the infancy of 100 schizophrenia patients, 37 of their siblings and 200 age-matched healthy controls using a structured written questionnaire. Having been breast-fed was not negatively associated with schizophrenia.