460
Participants
Start Date
August 31, 2006
Primary Completion Date
October 31, 2012
Study Completion Date
October 31, 2012
400 IU Vitamin D3 (cholecalciferol)
400 IU vitamin D3/day given to lactating mother and 400 IU vitamin D3/day given as oral supplement to her infant
2400 IU Vitamin D3 (cholecalciferol)
2400 IU vitamin D3/day given to lactating mother and 0 IU vitamin D3/day (placebo) given as oral supplement to her infant
6400 IU Vitamin D3 (cholecalciferol)
6400 IU vitamin D3/day given to lactating mother and 0 IU vitamin D3/day (placebo) given as oral supplement to her infant
University of Rochester Medical Center, Rochester
Medical University of South Carolina, Charleston
National Institutes of Health (NIH)
NIH
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Medical University of South Carolina
OTHER