Skip to main content
. 2015 Dec 4;7(12):10189–10208. doi: 10.3390/nu7125527

Figure 3.

Figure 3

Proportion of participants with serum 25(OH)D concentrations above the lower natural limit, below the upper natural limit and within the natural range. Note: The purple line represents the proportion of individuals with serum 25(OH)D concentrations of 58 nmol/L or more by vitamin D supplementation level; the green line the proportion of participants with concentrations of 171 nmol/L or less; and the blue line the proportion of participants that have serum concentrations above 58 nmol/L and below 171 nmol/L. The blue line is curved and shows that the proportion above 58 nmol/L and below 171 nmol/L peaks at 87% at a supplementation dose of 2745 IU per day. At this optimal dose, 8% (100%–92%) will have serum 25(OH)D concentrations below 58 nmol/L and 5% (100%–95%) in excess of 171 nmol/L.