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.

Cabot Extra Sharp Aged Cheddar (average of two samples)

• Total Vitamin K2= 44.7
• Total Vitamin K= 46.9
• MK-4= 9.9
• MK-7= 1.0
• Sum of MK-4 + MK-7= 10.9
• MK-5= 0.2
• MK-6= 0.3
• MK-8= 6.2
• MK-9= 25.3
• MK-10= 1.8
• MK-11= 0
• MK-12= 0
• MK-13= 0
• Vitamin K1= 2.2
• Category:  Dairy Foods and Eggs
• Reference:   Independently analysis provided by VitaK to the Weston A. Price Foundation. Original documentation available at http://www.westonaprice.org/uncategorized/vitak-test-results/