New updated WHO classification of BMI (Body Mass Index)

 The International Classification of adult underweight, overweight and obesity according to BMI (Body Mass Index)

Classification BMI(kg/m2)
Principal cut-off points Additional cut-off points
Underweight <18.50 <18.50
     Severe thinness <16.00 <16.00
     Moderate thinness 16.00 – 16.99 16.00 – 16.99
     Mild thinness 17.00 – 18.49 17.00 – 18.49
Normal range 18.50 – 24.99 18.50 – 22.99
23.00 – 24.99
Overweight ≥25.00 ≥25.00
     Pre-obese 25.00 – 29.99 25.00 – 27.49
27.50 – 29.99
     Obese ≥30.00 ≥30.00
          Obese class I 30.00 – 34.99 30.00 – 32.49
32.50 – 34.99
          Obese class II 35.00 – 39.99 35.00 – 37.49
37.50 – 39.99
          Obese class III ≥40.00 ≥40.00

Source: Adapted from WHO 1995, WHO 2000 and WHO 2004.

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