Maternal Probiotic Supplementation for Improved Outcomes in Infants of Diabetic Mothers

Inclusion Criteria: * Pregnant people in their second or third trimester with a diagnosis of gestational diabetes. * BMI 18.5-45 kg/m2 at first prenatal visit * Age 21-45 at time of delivery * Report social support for and intention to exclusively breastfeed for at least 3 months * Singleton pregnancy Exclusion Criteria: * Alcohol consumption \>1 drink per week during pregnancy/lactation * Tobacco consumption during pregnancy/lactation * Inability to speak/understand English * Known congenital metabolic, endocrine disease (other than GDM), or congenital illness affecting infant feeding * History of type I Diabetes * Birthing parent currently taking over the counter probiotic preparation