... Changes in body weight, body composition and cardiovascular risk factors after long-term nutritional intervention in patients with severe mental illness: an observational study. BMC Psychiatry 2011 ... Kostara C, Hannon JC: Effects of nutritional intervention on body weight and body composition of obesepsychiatric patients taking olanzapine. Nutrition 2009, 25:729-735.18. Vreeland B, Minsky S, Menza ... study aimed to investigate the effects ofa long term nutritional intervention on body weight, body fat and cardiovascular risk factors in a large number of patients with SMI.Methods: Nine hundred...