What is a key indicator of metabolic syndrome?

The correct indicator of metabolic syndrome is blood pressure greater than 135/85 mmHg. Metabolic syndrome is defined by a cluster of conditions that increase the risk for cardiovascular disease and diabetes, including high blood pressure, elevated blood sugar levels, excess body fat around the waist, and abnormal cholesterol levels.

Hypertension is a core component of metabolic syndrome, and the criteria often designate blood pressure levels above 130/85 mmHg as a contributing factor. Elevated blood pressure contributes significantly to cardiovascular risk and is therefore a critical element in the diagnosis of metabolic syndrome.

The other options do not meet the specific criteria for metabolic syndrome. For instance, while HDL cholesterol plays a role in cardiovascular health, a level greater than 50 mg/dL is not typically a defining factor for metabolic syndrome, as lower HDL (often less than 40 mg/dL in men and 50 mg/dL in women) is more concerning. Waist circumference is also relevant, with thresholds often set at >40 inches for men and >35 inches for women, thus the figure for men given in this scenario is not accurate for metabolic syndrome. Finally, normal fasting glucose would exclude diabetes, but the presence of elevated glucose levels (≥100 mg/dL) is necessary for metabolic