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Table 1 Institute of Medicine (IOM) 2009 guidelines for total gestational weight gain

From: Opportunities for primary and secondary prevention of excess gestational weight gain: General Practitioners' perspectives

Pre pregnancy Weight category

Pre pregnancy BMI

Recommended pregnancy weight gain based on IOM guidelines

Underweight

< 18.5 kg/m2

12.5 - 18 kg

Normal weight

18.5 - 24.9 kg/m2

11.5 - 16 kg

Overweight

25 - 29.9 kg/m2

7 - 11.5 kg

Obese

≥30 kg/m2

5 - 9 kg