Description
Inclusion Criteria:
- * Female based on sex assigned at birth
- * Preconception body mass index (BMI) 40.0 - 50 kg/m2
- * Singleton pregnancy
- * Age 18-44 years old
- * \< = to 17 weeks gestational age
- * Fluency in English to provide consent and complete study procedures
- * Ability to provide informed consent
- * Cleared by study doctor and the obstetrician/mid-wife provider to participate
- * Access to a smartphone to complete intervention procedures
Exclusion Criteria:
- * Deemed medically high risk
- * Multiple pregnancy (e.g., twins)
- * Type 1 or 2 diabetes mellitus
- * Early gestational diabetes (diagnosed at \< = to17 weeks gestational age through an oral glucose tolerance test)
- * Currently eating ≤ 12 hours daily
- * Autoimmune disorder (e.g., rheumatoid arthritis)
- * iron deficiency anemia
- * Inflammatory bowel disease
- * Previous spontaneous preterm birth
- * History of bariatric surgery
- * Night shift work
- * Currently incarcerated
Ages Eligible for Study:
18 Years to 44 Years (ADULT)
Sexes Eligible for Study: FEMALE
Accepts Healthy Volunteers:
Yes