Bridgman SL, et al. - Researchers ascertained if maternal pre-pregnancy overweight or obesity (OWOB) is associated with infant overweight in a sex-dependent manner, independent of microbiota-altering variables. From the Canadian Healthy Infant Longitudinal Development cohort, weight and length measurements of nine hundred fifty-five mother-infant pairs were obtained. The findings from the present study suggested that maternal pre-pregnancy OWOB increases the risk of infant overweight, and this relationship was more evident in male infants.