We have previously shown the critical importance of adequate pregnancy weight gain for women with twin pregnancies (https://www.mfmnyc.com/blog/mfm-publications/weight-gain-in-twin-pregnancies-and-adverse-outcomes/) and (https://www.mfmnyc.com/blog/mfm-publications/the-association-between-maternal-weight-gain-and-spontaneous-preterm-birth-in-twin-pregnancies/). However, most data has been for women who enter pregnancy with a normal weight, as defined by the pre-pregnancy body mass index (BMI). In this study, we found that women who enter pregnancy underweight should be recommended the same weight gain as women with normal pre-pregnancy weight.
Maternal Fetal Medicine blogs are intended for educational purposes only and do not replace certified professional care. Medical conditions vary and change frequently. Please ask your doctor any questions you may have regarding your condition to receive a proper diagnosis or risk analysis. Thank you!