Consort diagram: screening, randomization, and longitudinal 0- to 6-month analyses population by intervention arm. a Excludes women who became pregnant <3 months into the study. The women who had eligible pregnancies may have had delivery data obtained or they may have exited the study before delivery. bAfter excluding extreme invalid measurements as determined by expert internal review, the 0- to 6-month longitudinal analysis subset includes all live-born infants with birth length measurements measured by 7 days of age and at least 2 follow-up visits (1-month, 3-month, or 6-month).