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      Weight Gain During Pregnancy

      Weight gain during pregnancy varies from woman to woman. it also depends on body type. Talk with your healthcare provider about the amount of weight gain that's best for you. Also talk with your provider about diet and exercise during pregnancy.

      Recommendations for pregnancy weight gain by BMI

      The information in the chart below comes from the Institute of Medicine. 

       

      Prepregnancy

      BMI

       BMI  

      Total gain   

      range

      Rate of gain in 2nd and 3rd      

      trimester

      Underweight

       less than 18.5

       28-40 lbs

       1 (1-1.3) lbs/week

      Normal Weight

       18.5-24.9 

       25-35 lbs

       1 (0.8-1) lbs/week

      Overweight

       25.0-29.9

       15-25 lbs

       0.6 (0.5-0.7) lbs/week

      Obese

       greater than 30.0 

       11-20 lbs

       0.5 (0.4-0.6) lbs/week

       

      In most cases, total weight gain at the end of pregnancy is estimate below. The information comes from the March of Dimes.

      Baby

      7.5 pounds

      Maternal energy stores
      (fat, protein, and other nutrients)

      7 pounds

      Fluid volume

      4 pounds

      Breast enlargement

      2 pounds

      Uterus

      2 pounds

      Amniotic fluid

      2 pounds

      Placenta

      1.5 pounds

      Blood

      4 pounds

      Related Topics

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      • Multiple Sclerosis (MS)
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