Reference | Type of study | Country | Participants |
Type and dose of vitamin K |
Duration | Results |
---|---|---|---|---|---|---|
Bolton-Smith C et al. 2007 [24] |
Randomized controlled studies | UK | Healthy postmenopausal Women (n=209) |
K1 (200mcg/day) and/or vitamin D (400 IU/day) plus calcium (1000 mg/day) vs. placebo. |
Two years | ultradistal radius BMD and BMC was increased in K1 plus vitamin D plus calcium group vs. placebo |
Kanellakis S et al. 2012 [25] |
Randomized controlled studies | Greece | Postmenopausal women (n=219) |
K1 or K2 (100 mcg/day) vs. placebo |
one year | Total BMD was increased in all groups vs. placebo, increased BMD of lumbar spine vs. placebo after adjusting for changes in serum vitamin D concentration and dietary calcium intake |
Moschonis G et al. 2011 [26] |
Randomized controlled studies | Greece | Postmenopausal women (Ca vit.D group, n = 26) (Ca vit.D vit.K1 group, n = 26) (Control group, n = 39) |
K1 (100mcg/day) or K2 (100 mcg/day) vs. placebo. Fortified milk and yoghurt, one control group on normal diet. |
One year | Total BMD was increased vs. placebo |