Shared genetic variance between the features of the metabolic syndrome: Heritability studies

► Strongly genetically correlated features share much genetic variation. ► We reviewed studies on genetic correlations of metabolic syndrome features. ► Waist circumference and HOMA-IR were strongly genetically correlated. ► HDL cholesterol and triglycerides were strongly genetically correlated. ► Adiponectin was clearly genetically correlated with metabolic syndrome.