Which of the following levels of HDL is a threshold for metabolic syndrome in men?

In the context of metabolic syndrome, a threshold for HDL (high-density lipoprotein) levels is essential for identifying individuals at risk. For men, having an HDL level that is less than 40 mg/dL is an important marker, as this is considered a significant risk factor for cardiovascular disease and metabolic syndrome.

The rationale behind this threshold lies in the protective role of HDL cholesterol; higher levels of HDL are associated with a lower risk of heart disease. Conversely, when HDL levels drop below this threshold, it indicates a possible imbalance in cardiovascular health and increases the risk of metabolic syndrome, which encompasses other risk factors such as abdominal obesity, elevated blood pressure, and insulin resistance.

Understanding this threshold is vital for health professionals when assessing an individual's risk profile and determining appropriate interventions or lifestyle modifications. The other levels mentioned do not correspond to the definition of metabolic syndrome in men, as they either signify protective levels or do not accurately reflect the criteria established by health guidelines.