What You Need to Know About Vitamin D3, K2, Cal... - Thyroid UK

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What You Need to Know About Vitamin D3, K2, Calcium and Magnesium

greygoose profile image
11 Replies

thehealthierlife.co.uk/natu...

I didn't realise that K2 was so important!

Does anyone know if, when the doctor gives you a vitamin-K-blocking drug, does it block both K1 and K2? Or is it just K1?

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greygoose profile image
greygoose
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Marz profile image
Marz

Sorry do not know the answer. What about the website Drug Muggers ? Maybe they can tell you. A bit more info about K1 and K2 below....

chriskresser.com/vitamin-k2...

greygoose profile image
greygoose in reply toMarz

No, i didn't really think anyone would, but it was Worth a shot. Thanks for the link, but there's nothing there about K blockers.

Marz profile image
Marz in reply togreygoose

No I know - it was just additional info for others to read to support your comment of the importance of K2..... :-)

greygoose profile image
greygoose in reply toMarz

:)

Soldieress profile image
Soldieress

Hi greygoose, this article is also interesting but unfortunately doesn't answer your question: reviveactive.com/revive-act... I had heard that K2 worked in synergy with D3 and helped make sure that calcium went to the right places. I recently had a Vit D test done and my result was just below normal and just in the 'insufficient' so the dr prescribed 50,000i.u. D3 and to take once weekly for 4 weeks and then once every other week. I thought this was too much. When I was insufficient before I was prescribed 10,000 once a week and this got me into the normal range. Anyhow since then I had heard about the importance of Vit K through Chris Kresser's podcasts and asked the dr if she could check my Vit K levels as it was important to know but she looked at me as if I were mad. I'll print off some of this info. and hope that she will check it. PS I live overseas where the sun shines most of the time and I go out with no sun protection and don't shower straight after as I've heard that the oils in your skin need to have time to process the Vit D but i still ended up being insufficient! So for some reason I think some people just can't make Vit D3 easily from the sun.

Did a bit of Dr Googling researchfor you and found this: chriskresser.com/can-vitami... Let me know if it was useful (I didn't have time to read it all). Here's another one which I haven't read yet but looks interesting when I scanned it: evolutionaryhealthperspecti... it does talk about Vit K and Warfarin etc

Best of luck :)

Spareribs profile image
Spareribs in reply toSoldieress

Thanks for the link to Chris Masterjohn - I couldn't remember where I read Vit D shouldn't be supplemented with calcium. J :D

The conclusion of the last link -

Taken together, the above hypotheses, mechanisms, and evidence suggest that high doses of vitamin D supplementation alongside high doses of calcium supplementation increase the risk of soft tissue calcification and CVD. Additionally, low levels of vitamin D and calcium also have known health risks, and like every thing else in life, we must strike a balance. Therefore, one must take a critical assessment of their vitamin D, vitamin K, and calcium status before beginning a supplementation regimen. Additionally, the consumption of a well-balanced evolutionary based diet can provide adequate nutrients on both a macronutrient and micronutrient level.

another interesting link 'beyond chlolesterol' (Chris Masterjohn)

westonaprice.org/modern-dis...

greygoose profile image
greygoose in reply toSoldieress

I think the reason we can't make vit d is because we're hypo. That affects everything.

Thank you for the links. I'm afraid I can't read Chris Kresser, he annoys me too much! lol But the last one did somewhat answer my question. But raised a lot of others! I'll have to read it more carefully tomorrow, today isn't a day for concentrating...

:)

gabkad profile image
gabkad

goose, how much vitamin K2 do you want to take?

There is now support for people taking warfarin (coumadin) to also take 50 to 150 mcg of vitamin K1 per day and have their medication titrated to this so that INR be under better control. This way there are not the ups and downs when vitamin K1 intake can be highly variable due to dietary sources. In addition, excess vitamin K1 will be made into K2.

Lower doses of K2 don't have an effect on warfarin. However, if you are planning to take milligrams as opposed to micrograms, you'll need to inform your doctor and have INR testing done to see how much, if any, effect this has. The molecular structures of K1 and K2 are different. There is no mechanism known at this time whereby the body can make vitamin K1 from K2, although there is evidence that K1 can be made into K2.

For example hard cheeses contain vitamin K2. Egg yolk, chicken liver and beef, lamb and pork kidney contain K2 as well. Beef liver is not a good dietary source of vitamin K2. The bonus in consuming liver is that it also contains lots of vitamin A plus the B vitamins and iron.

gabkad profile image
gabkad

If you read this abstract, at the end it says that supplementing with K2 MAY cause interference with anti-coagulant therapy. MAY. ncbi.nlm.nih.gov/pubmed/171...

Best thing to do is let the quack know and get the INR tested to see what effect you get. So long as you take vitamin K2 on a daily basis and keep your blood level of the vitamin is steady, then even if it has an effect on INR, the warfarin dose can be adjusted and if you continue to take the vitamin consistently and daily, then you don't have to worry about the situation going pear shaped.

greygoose profile image
greygoose in reply togabkad

Thank you, I shall have a look at that.

gabkad profile image
gabkad

Just make sure your name is in the Will.

The calcium requirements in the diet need to be re-assessed when people are vitamins D3, K2, and A replete. These vitamins maximize absorption and utilization.

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