Inclusion Criteria:  Diagnosis with a mental health disorder Patient of outpatient program Age 18 or older Being overweight or obese defined as BMI>=25 Ability to understand spoken English  Exclusion Criteria:  Residing in a nursing home Cardiac event in past 6 months Past episode of anorexia or bulimia Pregnancy Diagnosis with a terminal illness expected to result in death within 1 year Active alcohol or substance abuse or dependence Inability to provide informed consent due to diagnosis of dementia or cognitive impairment Inability to understand spoken English