Abstract
Obesity is a multidimensional condition characterized by autonomic imbalance, metabolic inflexibility, impaired physical resilience, and ectopic adiposity, pathophysiological alterations that arise long before overt cardiometabolic disease becomes clinically detectable. Despite this, current cardiometabolic risk scores continue to rely predominantly on biochemical and anthropometric variables, such as BMI, waist circumference, glucose, and lipid levels. While these markers are practical, inexpensive, and validated across large population cohorts, growing evidence shows that they offer limited incremental predictive value and fail to capture early functional and structural abnormalities. The recent literature highlights the prognostic importance of autonomic dysfunction, reduced metabolic flexibility, diminished cardiorespiratory fitness, impaired muscular strength, and ectopic fat depots including visceral and epicardial adiposity, independently of the traditional anthropometric indices. The domains remain absent from traditional algorithms such as the Metabolic Syndrome criteria, the Framingham Risk Score, and SCORE2. As a result, cardiometabolic risk is frequently underestimated in key subgroups, including young adults with obesity, individuals with high visceral adiposity but normal BMI, those with subclinical myocardial dysfunction, and metabolically unhealthy normal-weight phenotypes. This narrative review synthesizes current evidence on obesity-related cardiometabolic impairment, highlights major gaps in established risk scores, and supports the conceptual development of the C.O.R.E. (Cardio-Obesity Risk Evaluation) Indicator Model-a hypothesis-generating, non-validated multidomain framework integrating autonomic, metabolic, functional, and structural markers to enable earlier risk phenotyping in future studies.