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The most useful measures are shown at the top of the list. In addition to total vitamin K2, total vitamin K includes the small amount of vitamin K1 that is present in some of these foods. MK-4 is the form that plays a specific role in regulating gene expression. MK-4 and MK-7 are the two forms that have been studied well and shown to support the activation of vitamin K-dependent proteins produced outside the liver.

Values are reported as μg/100g food for solids or μg/100 ml food for liquids.  NM=Not Measured. ND=Not Detected.

Beef Liver

      • Total Vitamin K2= 106
      • Total Vitamin K= 108
      • MK-4= 1
      • MK-7= 18
      • Sum of MK-4 + MK-7= 19
      • MK-5= 0
      • MK-6= 3
      • MK-8= 5
      • MK-9= 2
      • MK-10= 7
      • MK-11= 14
      • MK-12= 22
      • MK-13= 34
      • Vitamin K1= 2
      • Category:  Organ Meats (Offal)
      • Reference:   Hirauchi, Hirauchi K, Sakano T, Notsumoto S, Nagaoka T, Morimoto A, Fujimoto K, Masuda S, Suzuki Y. (1989) Measurement of K vitamins in animal tissues by high-performance liquid chromatography with fluorimetric detection. Journal of Chromatography. 29;497:131-7. (Pubmed). Cited at