Eat Right Practice Exam

Which measure of obesity correlates best with obesity-associated disease risk?

1. BMI

2. Skinfold thickness

3. Abdominal body shape index

4. Waist circumference

The correct answer is: Waist circumference

Waist circumference is the measure that correlates best with obesity-associated disease risk because it specifically assesses central or abdominal obesity, which is a significant risk factor for various health conditions such as type 2 diabetes, cardiovascular diseases, and metabolic syndrome. Central fat is more metabolically active and is linked to a higher risk of these diseases compared to fat distributed in other areas of the body. While other measures like BMI (Body Mass Index) can provide a general indication of a person's weight status, they do not distinguish between fat and lean mass or account for fat distribution. Skinfold thickness can provide some insight into body fat but is subjective and can vary based on the skill of the person taking the measurements. The abdominal body shape index considers waist circumference and hip circumference, but is less commonly used in clinical practice compared to waist circumference on its own. Thus, waist circumference remains a straightforward and effective measure to identify individuals at higher risk of obesity-related health issues, making it the best correlate for obesity-associated disease risk.