A Weight Maintenance Program Promoting Fat Loss in Pregnancy in Women With Obesity

Inclusion Criteria:

• Are pregnant less than or equal to 15 weeks gestation at screening

• Have a body mass index between 31.0 and 55.0 inclusive

• Have a confirmed viable singleton gestation

• Willing to receive randomization to either group

• Willing and able to eat the study foods

• Willing to enroll infant for study measurements after birth

• Receive clearance from the prenatal care provider for participation

Exclusion Criteria:

• Smoking, drug, or alcohol use

• Have a known fetal anomaly

• Have a non-pregnancy related illness

• Have pre-existing diabetes

• Have pre-existing hypertension

• Have severe anemia

• Have current mental health issue or eating disorder

• Short inter-pregnancy interval (<6 months since last pregnancy)

• Use of assisted reproductive technology

• Use of medications with known effects on body weight including over the countermedications and supplements for weight loss

• History of pre-eclampsia, prior small for gestational age infant, bariatric surgery

• Planning to move out of the area in the next 12 months