For men, a waist circumference above which threshold is associated with increased risk for diabetes and heart disease?

• A. >34 cm
• B. >37 cm
• C. >40 cm
• D. >45 cm

Answer: (C)

Abdominal fat around the waist is a key indicator of metabolic risk because excess visceral fat affects insulin sensitivity and cardiovascular health. When waist size crosses a certain cutoff, the likelihood of diabetes and heart disease rises more noticeably, so that threshold helps flag individuals at higher risk.

The value just over 40 cm is the best fit among the options because it marks the point where increased abdominal adiposity becomes a meaningful signal of elevated risk within this question’s set. The other values are either too small to indicate appreciable risk or represent a higher, less typical level of fat for screening. In many guidelines, the commonly cited benchmark for men is around 102 cm (about 40 inches), so using a threshold near 40 cm here aligns with that general idea in a simplified, metric form.