Classification and Risks of Overweight and Obesity
Classification of Overweight and Obesity by BMI, Waist Circumference,
and Associated Disease Risks |
|
|
|
|
Disease Risk* Relative to Normal Weight and Waist Circumference |
|
|
BMI
(kg/m2) |
Obesity
Class |
Men 102 cm (40 in) or less
Women 88 cm (35 in) or less |
Men > 102 cm (40 in)
Women > 88 cm (35 in) |
| Underweight |
< 18.5 |
|
– |
– |
| Normal |
18.5 – 24.9 |
|
– |
– |
| Overweight |
25.0 – 29.9 |
|
Increased |
High |
| Obesity |
30.0 – 34.9 |
I |
High |
Very High |
|
|
35.0 – 39.9 |
II |
Very High |
Very High |
| Extreme Obesity |
40.0 + |
III |
Extremely High |
Extremely High |
* Disease risk for type 2 diabetes, hypertension, and CVD.
+ Increased waist circumference can also be a marker for increased risk even in persons of normal weight.
