Questions And Answers 2017-05-24T11:03:03+00:00

Frequently asked questions

What is vitamin K and what does it do?
-Vitamin K refers to a group of chemically similar fat soluble compounds called naphthaquinones. These compounds have common 2-methyl-1,4-Naphthaquinone ring but differ in the structure of the side chain at the third position. The natually occuring forms of vitamin K include vitamin K1 (phylloquinone, phytonadione) and vitamin K2 (menaquinone). Vitamin K helps the body to efficiently distribute calcium.

How does vitamin K effect bone mineralization?
-There are three vitamin K dependent proteins in the bone mineralization- osteocalcin , matrix Gla-protein (MGP) and protein S. These have been found in cartilage, bone, as well as soft tissue. These proteins facilitate normal bone growth.

What is vitamin K1´s main function?  
-Vitamin K1 (Phylloquinone, Phytonadione) is the form used in the liver to activate clotting factors.

What is vitamin K2 and its main function?
-Vitamin K2 (Menaquinone) is one of the naturally occuring forms of vitamin K. Vitamin K2 has several subtypes, which differ in isoprenoid chain length. Menaquinones are abbreviated MK-n, where M stands for menaquinone, the K stands for vitamin K, and the n represents the number of isoprenoid side chain residues. Vitamin K2 is the form used in the rest of the body to activate vitamin K-dependent proteins.

What are the main differences between vitamin K2 MK-4, vitamin K2 MK-7 and vitamin K2 MK-9?
-Vitamin K2-4 (MK-4) is produced from vitamin K3 (also known as menadione, often used in animal feed) and its a short chain menaquinone. Obviously, MK-4 also belongs to the K2 family and is predominately found in meat, but can also be found in fermented  products, certain types of cheese, butter, chicken egg yolk and natto (fermented soy beans).

-Vitamin K2-7 (MK-7) is the main form of vitamin K2 found in natto whereas MK-9  is the most abundant form in cheese (which is also a product obtained by fermentation). Vitamin K2 MK-7 has a much better bioavailability and approximately 96 hours half life in comparison to vitamin K2-MK4 that has half life off only a few hours. These are the main reasons why Vitamin K2 as Menaquinone-7 (MK-7) should be the vitamin K2 supplement of choice.

Properties of synthetic vitamin K1 and synthetic vitamin K2 MK-4?
-The haft life is only a few hours and due to this high pharmacological doses (milligrams) are needed. However both synthetic K1 and synthetic MK-4 are very dangerous in larger doses due to interaction with persons blood-thinning medications (eg Warfarin). A great majority of the supplements available in the market contains vitamin K2 as Menaquinone-4 (MK4). The main reason for this is that the synthetic versions are much cheaper and the products can still be labeled as vitamin K2.

What is the shelf life?
-Vitamin K2 has 2 year shelf life.

Why should I take vitamin K2?
-It helps you build strong bones and keep them healthy and may support your vascular health.*

How and where is Menacin produced?
-Menacin is produced within the EU under pharmaceutical supervision.

I am lactose intolerant. Can I take Menacin?

Is Menacin gluten free?