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Saturday, January 6, 2018

Vitamin K2



Vitamin K2 is an important vitamin especially those with cardiac disease, osteoporosis or MS.
Those supplementing with vitamin D should also be taking vitamin K2 as vitamin D increases the need for vitamin K2.
Most are aware of vitamin K1 which is involved with blood clotting, Newly discovered vitamin K2 is a related molecule with different functions.
Vitamin K2 (menaquinone)
      Directs calcium away from soft tissues such as blood vessels and toward bones and teeth, improving vascular and bone health [1]
      Is essential to building part of the myelin sheath [2], [3]
      Protects myelinating cells and neurons [4], [5]
      Improves overall longevity:

[6-10]


               1.         S. Cockayne, J. Adamson, S. Lanham-New, M.J. Shearer, S. Gilbody and D.J. Torgerson, Vitamin K and the prevention of fractures: systematic review and meta-analysis of randomized controlled trials. Arch Intern Med. 2006; 166: 1256-1261
               2.         N.A. Denisova and S.L. Booth, Vitamin K and sphingolipid metabolism: evidence to date. Nutr Rev. 2005; 63: 111-121
               3.         G. Ferland, Vitamin K and the nervous system: an overview of its actions. Adv Nutr. 2012; 3: 204-212
               4.         S.A. Back, N.L. Luo, N.S. Borenstein, J.M. Levine, J.J. Volpe and H.C. Kinney, Late oligodendrocyte progenitors coincide with the developmental window of vulnerability for human perinatal white matter injury. J Neurosci. 2001; 21: 1302-1312
               5.         J. Li, H. Wang and P.A. Rosenberg, Vitamin K prevents oxidative cell death by inhibiting activation of 12-lipoxygenase in developing oligodendrocytes. J Neurosci Res. 2009; 87: 1997-2005
6         Rees K, Guraewal S, Wong YL, et al. Is vitamin K consumption associated with cardio-metabolic disorders? A systematic review. Maturitas. 2010 Oct;67(2):121-8.
7           Geleijnse JM, Vermeer C, Grobbee DE, et al. Dietary intake of menaquinone is associated with a reduced risk of coronary heart disease: the Rotterdam Study. J Nutr. 2004 Nov;134(11):3100-5.
8                    Gast GC, de Roos NM, Sluijs I, et al. A high menaquinone intake reduces the incidence of coronary heart disease. Nutr. Metab. Cardiovasc. Dis. 19 (2009) 504-510.
9                      Beulens JW, Bots ML, Atsma F, et al. High dietary menaquinone intake is associated with reduced coronary calcification. Nutr. Metab. Cardiovasc. Dis. 19 (2009) 504-510.
10           Vermeer C. Clinical trial on beneficial effects of long term menaquinone-7 (vitamin K2) intake by postmenopausal women. ClinicalTrials.Gov NCT00642551.
Kroon A. The effects of vitamin K2 supplementation on the progression of coronary artery calcification. ClinicalTrials.Gov NCT01002157.