Vitamin K2

Found InNatto, hard cheese, and egg yolk
FormMenaquinone -7
Source Synthesized Vitamin K2
SupplierKappa Biosciences
Final Location of ManufacturingOslo, Norway
FunctionDietary Ingredient
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Vitamin K2


Bone Health*

Heart Health*

The form of non-soy MK7 that we use has been shown to last longer in the body.*

Vitamin K2 is a calcium-helper nutrient.*


Vitamin K2

Evidence-Based or Bust

We use nutrients backed by a significant body of research that is growing every day. Of the thousands of unaffiliated studies our in-house scientists sorted through to guide our choices, the titles below are some relevant MVPs.


Bioavailability and chemical/functional aspects of synthetic MK-7 vs fermentation-derived MK-7 in randomised controlled trials - 2016

Kappa Bioscience; University of Oslo


Importance of Vitamin K for bone and cardiovascular health - 2003

University of Maastricht


Foods, fortificants, and supplements: where do Americans get their nutrients? - 2011

Nutrition Impact LLC


Vitamin K2 for bone health. Vitamin K2 - a key factor for optimal bone health at all ages - 2015

Kappa Bioscience AS


Proper calcium use: Vitamin K2 as a promoter of bone and cardiovascular health - 2015

International Science and Health Foundation


Comparison of menaquinone-4 and menaquinone-7 bioavailability in healthy women - 2012

J-Oil Mills, Inc.; University of Maastricht


No effect of vitamin K1 intake on bone mineral density and fracture risk in perimenopausal women - 2006

Aarhus University

There are 12,596 studies on Vitamin K and counting

Substantiation is a living, breathing thing. We are constantly reviewing new research.

Find Your Ritual