Which vit k is the right one?: Am going to... - Thyroid UK

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Which vit k is the right one?

msmono profile image
6 Replies

Am going to introduce this to my regime and having just figured out which magnesium to take (didn't know there were so many and have wasted money in a poor one) i now see there is more than one type of vitamin k? Any recommendations?

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msmono
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6 Replies
SeasideSusie profile image
SeasideSusieRemembering

Are you going to be taking it because you are supplementing D3 for a low level of Vit D?

Vit K2 is the correct one to take as a cofactor of D3 as it directs the extra uptake of calcium from food to bones and teeth where it is needed and away from arteries and soft tissues where it can be deposited and cause problems like calcification of arteries, kidney stones, etc.

There are two types of Vit K2 - MK4 and MK7.

MK4 comes from animal foods - high fat dairy products from grass fed cows, egg yolks, liver and organ meats. It leaves the body quite quickly and would need to be supplemented more than once a day. As K2 is fat soluble, MK4 isn't found in low fat/lean animal foods.

MK7 comes from fermented foods like sauerkraut and natto and stays in the body longer so only needs supplementing once a day.

You can get both types as stand-alone supplements, or you can get a supplement which contains both MK4 and MK7. As Vit K2 is fat soluble, it should be taken with dietary fat. Some MK7 supplements come as oil based softgels (eg Healthy Origins) or oil based sublingual drops (eg Vitabay Organic)

Vit K1 is the blood clotting form of Vit K, the form given to newborn babies. It isn't a cofactor of D3 and doesn't direct calcium to bones and teeth. K1 should not be taken by people who are on blood thinning medication.

msmono profile image
msmono in reply toSeasideSusie

Yes i’m taking D as mines low. K2 it is (with both MKs) thank you 🙂

elaine2447 profile image
elaine2447 in reply tomsmono

I was about to say the same as Seaside Susie. I also take the combined one. Just one thing, I am on various osteoporosis forums and for some people k2 mk7 can cause heart palpitations.

msmono profile image
msmono in reply toelaine2447

Thank you 😊

msmono profile image
msmono in reply toelaine2447

So I'm finding it hard to find many k2 products which have both mk4 and 7. Do i need both? In which case why don't they all contain both i wonder?

elaine2447 profile image
elaine2447 in reply tomsmono

Vitamin K Complex - K1 & K2 - Vegan - 120 Capsules amazon.co.uk/dp/B07FCQ2SF6/...

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