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Fig. 2. S-25-OHD concentrations for the four study groups are presented with separate lines. Symbols (•) 0, (*) 5, (
) 10 and (
) 20 µg/d represent mean values at each time-point and the error bars 1 SEM. At two weeks time-point all supplemented groups differed from the placebo (repeated measures ANOVA; p < 0.001). The plateau was reached after six weeks in every supplemented group and the concentration did not increase any further. All reached plateaus differed from the placebo group (ANOVA; p < 0.001).
