Inclusion Criteria:  singleton pregnancy a positive oral glucose tolerance test written informed consent labor scheduled for term induction (37-40 weeks)  Exclusion Criteria:  prior diagnosis of type 1 or type 2 diabetes mellitus presence of infection Presence of significant systemic disease or other severe metabolic, endocrine, or medical co-morbidities History of bariatric surgery or other surgeries that induce malabsorption Long-term use (>2 weeks) of systemic steroids prior to enrollment Multiple pregnancy Participants already using glucose lowering medications (metformin or insulin) for diabetes before study entry (can be used after diagnosis of GDM) Fetal growth restriction due to placental dysfunction or known congenital anomaly History of major depressive or other severe psychiatric disorders or inpatient psychiatric treatment up to 1 year before enrolment Inability or refusal to comply with protocol