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.

Black Bean Natto

• Total Vitamin K2= 796
• Total Vitamin K= 846
• MK-4= 0
• MK-7= 796
• Sum of MK-4 + MK-7= 796
• MK-5= 0
• MK-6= 0
• MK-8= 0
• MK-9= 0
• MK-10= 0
• MK-11= 0
• MK-12= 0
• MK-13= 0
• Vitamin K1= 50
• Category:  Fruits, Vegetables, and Beans (Plant Foods)
• Reference:   Kamao M, Suhara Y, Tsugawa N, Uwano M, Yamaguchi N, Uenishi K, Ishida H, Sasaki S, Okano T. Vitamin Content Foods and Dietary Vitamin K Intake in Japanese Young Women. Journal Nutr Sci Vitaminol (Tokyo). 2007 Dec;53(6):464-70.