(BMI) Classification System Used to Determine Healthy Weight Ranges

• Under weight:   < 18.5
• Normal weight:   18.5-24.9
• Overweight:   25-29.9
• Class I obese:   30-34.9
• Class II obese:   35-39.4
• Class III obese:   > 40

MEN ARE AT "HIGH-RISK" when waist circumference is greater than 102 cm;
WOMEN ARE AT "HIGH-RISK" when waist circumference is greater than 88 cm.

BMI classification system used in this reference:

1. Janssen, I, Katzmarzky, P..T. & Ross, R. Body mass index, waist circumference and health risk.
2. Arch Intern Med 2002; 162: 2074-2079.