Classification of weight according to BMI for Caucasian, South Asian and Chinese populations1
| Classification | BMI (kg/m2) | |
| Caucasian | South Asian* and Chinese | |
| Healthy or ‘normal’ weight | 18.5–24.9 | 18.5–23 |
| Overweight or preobesity | 25–29.9 | 23–27.5 |
| Obesity I | 30–34.9 | ≥27.5 |
| Obesity II | 35–39.9 | |
| Obesity III | ≥40 | |
*South Asian = Bangladesh, Bhutan, India, Indian-Caribbean (immigrants of South Asian family origin), Maldives, Nepal, Pakistan and Sri Lanka
BMI, body mass index.