Pre-gestational Health
BMI (kg/m2)q
Recommended Range of Total Weight (lb)
*Recommended Rates of Weight Gain in the Second and Third Trimesters (Ib) (Mange Range[Ib/wk])
Less than Normal
<18.5
28-40
1 (1-1.3)
Normal
18.5-24.9
25-35
1 (0.8-1)
Above Normal
25–29.9
15-25
0.6 (0.5-0.7)
Obese (includes all classes)
>30
11-20
05 (0.4-0.6)
*Calculations assume a 1.1-4.4 Ib weight gain the first trimester
Table 1: The Guideline for Weight Gain during Pregnancy According to BMI [11,12]