Figure 1
From: Comparison of menaquinone-4 and menaquinone-7 bioavailability in healthy women
Change in serum vitamin K 2 levels following a single oral dose (420 μg) of MK-4 or MK-7. Each point represents the mean ± SEM of 5 subjects at 0, 2, 4, 6, 10, 24, 48 and 72 h. ■=MK-4; ○=MK-7