Which measurement is commonly used to assess central obesity in metabolic syndrome?

• A. Body mass index
• B. Waist circumference
• C. Hip circumference
• D. Neck circumference

Answer: (B)

Central obesity is assessed most directly by waist circumference because it captures the amount of fat stored around the abdomen, which is most strongly linked to metabolic risk. This measure reflects visceral fat that drives insulin resistance, high triglycerides, low HDL, and hypertension—core features of metabolic syndrome. In contrast, body mass index looks at total body mass without indicating where fat is distributed, so it can miss people who carry excess abdominal fat despite a normal overall weight. Hip circumference isn’t a direct indicator of central fat, and although neck circumference is studied as a predictor, it isn’t part of the standard criteria for metabolic syndrome. In practice, central obesity is defined by waist measurements above sex-specific thresholds, signaling increased cardiometabolic risk regardless of overall body size.