7. Vitamin K – natural MK7 form NOT synthetic
Vitamin K is an essential vitamin that can be found as phylloquinone (vitamin K1) in green leafy vegetables. It makes up about 80% of our intake of vitamin K, but is not very active.
Menaquinones (MKs) are types of vitamin K2 found in some animals and fermented foods. This is the type that are made by bacteria and are susceptible to antibiotic use. It is one of the bacteria that Atlas Biomed (our gut testing partners) analyse and report on when you do a gut microbiome test.
There are a number of subtypes of MKs 4-13. The one with the most benefits appears to be K7, which is found in fermented natto.
Why do we need vitamin K?
Prothrombin requires vitamin K to function and is essential for blood clotting.
Osteocalin requires vitamin K to produce healthy bones. A lack of vitamin K will cause osteopenia and osteoperosis.
In skin it helps with the health of small blood vessels, stretch marks, undereye puffiness, and dark circles.
Which foods are rich in vitamin K?
Vitamin K is found naturally in natto, which is a fermented soy bean dish popular in Japan and often described as a super food.
TIP: Make sure you get natural K2 rather than synthetic form of the vitamins. The synthetic forms have been reported to have higher levels of isomers that are inactive in the body.