INS and diabetes mellitus: Exclusion: (1) Required insulin or other oral diabetes therapies; (2) Shift worker or irregular mealtimes; (3) > 4 fasting BGLs ≥ 5.4 mmol/L; (4) Macrosomic fetus or polyhydramnios; (5) Required interpreting service; (6) Prior bariatric surgery; (7) Administered betamethasone or required hospital admission during study.