Effectiveness of a Pragmatic, Metabolic Care Clinic for Patients With Severe Mental Illness - The Meta Care Clinic

* Consultations by medical doctors with specific metabolic training from the metabolic clinic located at Centre for Addiction and Mental Health in Toronto, Canada, and an exercise physiologist. * Evaluation of their psychopharmacotherapy with consultation and detailed recommendations to the patients' treating psychiatrist and/or general practitioner regarding dosage reductions or switching of psychotropics if this is clinically feasible to reduce the metabolic burden. * Lifestyle interventions * Pharmacotherapy with evidence to support use to mitigate antipsychotic-induced weight gain * Treatment of other cardiovascular risk factors such as dyslipidaemia, hypertension, smoking and diabetes in close collaboration with recognized specialists in endocrinology. * Assessment of plans at conferences with participation of the sponsor, the primary investigator as well as recognized specialists in endocrinology and psychiatry. * Qualitative interviews will be conducted post-intervention.

Following measurements after 12 months, patients will receive individualized lifestyle recommendations from an exercise physiologist and a MD will offer to send recommendations regarding the following potential post-trial interventions to the patients' general practitioner and/or outpatient clinic prepared in close collaboration with recognized specialists in psychiatry and endocrinology: * Suggestions regarding relevant psychotropic medication adjustments or switches if this is found relevant and clinically feasible to reduce the metabolic burden. * Suggestions regarding potential add-on of weight reducing pharmacotherapy. * Suggestions regarding pharmacological treatment of other cardiovascular risk factors such as dyslipidaemia, hypertension, smoking and type 2 diabetes.