Comment on Ooi and Wong. Twin Pregnancy With Gestational Diabetes Mellitus: A Double Whammy? Diabetes Care 2018;41:e15–e16

We read with interest the findings of Ooi and Wong (1) in their recent article on gestational diabetes mellitus (GDM) in twin pregnancy. Whereas a major goal of GDM management in singleton pregnancies is to reduce fetal overgrowth, twin pregnancies are inherently associated with restricted fetal growth and uncommonly reach full-term gestation. Therefore, it is important to evaluate birth weight outcomes for GDM in twin pregnancy. The authors reported that women with GDM in twin pregnancy have a similar rate of small-for-gestational-age (SGA) (birth weight