Table 1:
Definition of weight categories and body mass index
Weight category
Body mass index (BMI) (kg/m
2
)
Underweight
<18.5
Normal weight
18.5–24.9
Overweight
25–29.9
Obese
30–34.9
35–39.9
Morbidly obese*
≥40
*Sometimes referred to as severely obese.