24
Participants
Start Date
October 31, 2006
Primary Completion Date
February 28, 2011
Study Completion Date
February 28, 2011
vitamin D3
4000 IU once daily by mouth for 4 months
Placebo
microcrystalline cellulose capsule p.o. daily (identical to vitamin D capsule)
Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston
Collaborators (1)
National Institute on Aging (NIA)
NIH
Boston Medical Center
OTHER
Tufts University
OTHER