Figure 1 Caption.

The lifestyle intervention in preparation for pregnancy (LIPP) study design. 200 women approximately 12 weeks postpartum, classified as overweight or class I obesity prior to their most recent pregnancy, will be prospectively randomized (1:1) in blocks of 4 to receive either the LIPP or standard of care treatment. The LIPP program consists of 3 months of intensive weight loss, followed by weight loss maintenance lasting until their subsequent pregnancy. Maternal outcome assessments will occur at 3, 6, 9, 15, and 21 months postpartum. Both LIPP and standard of care participants will receive routine clinical management for maternal and gestational health during their subsequent pregnancy. Maternal outcome assessments will occur at 12–16 and 32–36 weeks of gestation. Neonatal body composition will be determined within 72 hours of birth upon delivery.