Table 3.
Classification of overweight and obesity by body mass index (BMI)
| Classification | Class | BMI (kg/m2) |
| Underweight | <18.5 | |
| Normal | 18.5–24.9 | |
| Overweight | 25.0–29.9 | |
| Obesity | I | 30.0–34.9 |
| II | 35.0–39.9 | |
| Extreme obesity | III | ≥40 |
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