Lecorguillé M, Jacota M, de Lauzon-Guillain B, et al. - Via data of 16,395 women from the Étude Longitudinale Française depuis l’Enfance French national birth cohort, a nationally representative cohort in which infants were recruited at birth with their families in 2011, researchers examined the relationship between weight change over the year prior to the pregnancy and birth weight. For women with overweight and obesity, in comparison with women with stable weight prior to the pregnancy, weight loss prior to the pregnancy had a correlation with elevated gestational weight gain, which appeared to cancel out an expected decrease of infant birth weight. Thus, health professionals should be aware that gestational weight gain in overweight and obese women may offset the anticipated impact of weight loss prior to the conception on fetal growth.