Vitamin D-vitamin K interaction:

In the study of "Vitamin D-vitamin K interaction: effect of vitamin D supplementation on serum percentage undercarboxylated osteocalcin, a sensitive measure of vitamin K status, in Danish girls" by O'Connor E, Mølgaard C, Michaelsen KF, Jakobsen J, Cashman KD., posted in US National Library of Medicine National Institutes of Health, found that Vitamin D3 supplementation significantly increased serum 25(OH)D (21.6 %; P < 0.002) but had no effect on serum %ucOC (P>0.8). In conclusion, the findings of the present intervention study in young girls suggest that vitamin D supplementation does not affect serum %ucOC, a marker of vitamin K status.