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. 2012:56.
doi: 10.3402/fnr.v56i0.5505. Epub 2012 Apr 2.

Vitamin K: food composition and dietary intakes

Sarah L Booth  1
Affiliations

Vitamin K: food composition and dietary intakes

Sarah L Booth. Food Nutr Res. 2012.

Abstract

Vitamin K is present in the diet in the forms of phylloquinone and menaquinones. Phylloquinone, which is the major dietary source, is concentrated in leafy plants and is the vitamin K form best characterized in terms of food composition and dietary intakes. In contrast, menaquinones are the product of bacterial production or conversion from dietary phylloquinone. Food composition databases are limited for menaquinones and their presence in foods varies by region. Dietary intakes of all forms of vitamin K vary widely among age groups and population subgroups. Similarly, the utilization of vitamin K from different forms and food sources appear to vary, although our understanding of vitamin K is still rudimentary in light of new developments regarding the menaquinones.

Keywords: dietary intake; food composition; menaquinones; phylloquinone; vitamin K.

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Figures

Fig. 1
Fig. 1
Forms of vitamin K. (A) Menadione, which is present in animal feed; (B) phylloquinone, which is the primary dietary source; (C) menaquinone-4, which is a conversion product from menadione or phylloquinone; and (D) menaquinones, which can vary in length from MK-4 to MK-13.
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References

    1. Gross J, Cho WK, Lezhneva L, Falk J, Krupinska K, Shinozaki K, et al. A plant locus essential for phylloquinone (vitamin K1) biosynthesis originated from a fusion of four eubacterial genes. J Biol Chem. 2006;281:17189–96. - PubMed
    1. Thane C, Paul A, Bates C, Bolton-Smith C, Prentice A, Shearer M. Intake and sources of phylloquinone (vitamin K-1): variation with socio-demographic and lifestyle factors in a national sample of British elderly people. Brit J Nutr. 2002;87:605–13. - PubMed
    1. McKeown NM, Jacques PF, Gundberg CM, Peterson JW, Tucker KL, Kiel DP, et al. Dietary and nondietary determinants of vitamin K biochemical measures in men and women. J Nutr. 2002;132:1329–34. - PubMed
    1. Piironen V, Koivu T, Tammisalo O, Mattila P. Determination of phylloquinone in oils, margarines and butter by high-performance liquid chromatography with electrochemical detection. Food Chem. 1997;59:473–80.
    1. Peterson JW, Muzzey KL, Haytowitz D, Exler J, Lemar L, Booth SL. Phylloquinone (vitamin K-1) and dihydrophylloquinone content of fats and oils. JAOCS. 2002;79:641–46.