Table 1.
2009 Gestational weight gain guidelines (Institute of Medicine, 2009)4
Pre-pregnancy BMI | Total weight gain at term | Rate of weight gain in the 2nd and 3rd trimester; Mean (range) |
---|---|---|
| ||
Underweight | 12.5–18 kg | 0.51 (0.44–0.58) kg/week |
(<18.5 kg/m2) | 28–40 lbs. | 1 (1–1.3) lbs./week |
| ||
Normal weight | 11.5–16 kg | 0.42 (0.35–0.50) kg/week |
(18.5–24.9 kg/m2) | 25–35 lbs. | 1 (0.8–1) lbs./week |
| ||
Overweight | 7–11.5 kg | 0.28 (0.23–0.33) kg/week |
(25.0–29.9 kg/m2) | 15–25 lbs. | 0.6 (0.5–0.7) lbs./week |
| ||
Obese | 5–9 kg | 0.22 (0.17–0.27) kg/week |
(≥ 30.0 kg/m2) | 11–20 lbs. | 0.5 (0.4–0.6) lbs./week |
BMI: body mass index