Faller rate according to Vitamin D dose groups placebo, low, medium and high in Caucasian and African American women. Caucasian women N=19, 36, 56, and 35 subject were in placebo, low, medium, and high dose groups respectively; African Americans: N=13, 22, 42, and 14 respectively. Faller rate was significantly associated with dose group in Caucasian (p=0.003) but not African American women (p=0.14)