Compare every Vitamin K2 product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Menaquinone - directs calcium to bones, works synergistically with D3
We rank Vitamin K2 by price per 75mcg - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
What it is
Vitamin K2 is a group of compounds known as menaquinones. These are fat soluble vitamins, meaning they need to be eaten with fats to be absorbed by the body.
Why it's used
It is primarily used to help direct calcium into the bones rather than letting it build up in the arteries. It works synergistically with Vitamin D3, which means the two nutrients work together to produce a better result than either would alone.
How it's made
Commercial Vitamin K2 is typically produced through a process called bacterial fermentation. Specific strains of bacteria are grown in large tanks where they naturally produce the vitamin as a byproduct, which is then extracted and purified into a powder for capsules.
What it typically costs
This ingredient generally sits in a mid-range price bracket. This is because the fermentation process required to create high-quality menaquinones is more complex and costly than the synthesis of simpler vitamins.
Dosage by purpose
Purpose
Typical studied dose
Evidence
preventing the development of hepatocellular carcinoma
45 mg per day
limited
haematological improvement in MDS and post-MDS AML patients
20 to 135 mg per day orally or 10 to 50 mg per day IV
limited
increasing insulin sensitivity
30 mg per day
emerging
reducing arterial stiffness and cardiovascular benefit
180 micrograms per day
emerging
improving markers of bone health
15-45 mg per day of MK-4 or 100-375 micrograms per day of MK-7
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Menaquinone - directs calcium to bones, works synergistically with D3
How does Suppio calculate the best-value Vitamin K2?
We rank Vitamin K2 by price per 75mcg - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Are these prices verified?
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
How often are Vitamin K2 prices updated?
Prices across our retailer network are refreshed at least daily.