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Table 1 Recommended ranges of total weight gain for pregnant women by pre-pregnancy body mass index (from the Institute of Medicine 1990)

From: The effect of pre-pregnancy body mass index and gestational weight gain on pregnancy outcomes in urban care settings in Urmia-Iran

BMI Level

Recommended weight gain

< 19.8

12.5–18

19.8–26

11.5–16

26–29

7–11.5

> 29

> 7