About BMI

According to National Heart, Lung, and Blood Institute (NHLBI) guidance, assessment of overweight commonly includes:

• Body mass index (BMI)
• Waist circumference
• Risk factors for diseases and conditions associated with obesity

BMI is a measure of weight relative to height, and waist circumference helps estimate abdominal fat. Combining these measures with additional risk factors supports an overall risk assessment for obesity-associated conditions.

What is Your Risk? (BMI)

BMI is a useful indicator that correlates with total body fat and is associated with disease risk for many adults. However, it has limitations:

• It may overestimate body fat in athletes or individuals with a muscular build.
• It may underestimate body fat in older adults or those who have lost muscle mass.
• Appropriate pregnancy weight gain varies; pregnant women should consult a health professional.