Fig. 1. Mean plasma vitamin D3 and 25OHD concentrations in young supplemented men (bold solid line), old supplemented men (bold dashed line), young controls (light solid line) and old controls (light dashed line). Error bars indicate standard errors of the mean.
Fig. 2. Associations of the eight-week change in 25OHD with baseline 25OHD in supplemented subjects (r = -0.44, p = 0.021) and controls (r = -0.07, p = 0.764).