From: Contribution of prepregnancy body mass index and gestational weight gain to caesarean birth in Canada
Prepregnancy BMI (kg/m2)
Recommended GWG (kg)
Underweight: BMI < 18.5
12.5 - 18.0
Normal weight: 18.5 ≤ BMI < 25
11.5 - 16.0
Overweight : 25 ≤ BMI < 30
7.0 - 11.5
Obese: BMI ≥ 30
5.0 - 9.0