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.

Pig Liver

• Total Vitamin K2= 6.6
• Total Vitamin K= 7.8
• MK-4= 1.1
• MK-7= 1.6
• Sum of MK-4 + MK-7= 2.7
• MK-5= 0
• MK-6= 0
• MK-8= 2.5
• MK-9= 0.6
• MK-10= 0.8
• MK-11= 0
• MK-12= 0
• MK-13= 0
• Vitamin K1= 1.2
• Category:  Organ Meats (Offal)
• Reference:   Koivu-Tikkanen TJ, Ollilainen V, Piironen VI. Determination of phylloquinone and menaquinones in animal products with fluorescence detection after postcolumn reduction with metallic zinc. Journal Agriculture and Food Chemistry. 2000 Dec;48(12):6325-31.