Metabolic epilepsies are conceptualized as having a distinct metabolic abnormality that has been demonstrated to be associated with a substantially increased risk of developing epilepsy in appropriately designed studies. Metabolic disorders have genetic origin; however, the metabolic abnormalities are a separate disorder interposed between the genetic defect and the epilepsy. [ https://orcid.org/0000-0001-8486-0558 https://www.epilepsydiagnosis.org/aetiology/metabolic-groupoverview.html ]