D3 and K2: My daughter is deficient in... - Pernicious Anaemi...

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D3 and K2

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My daughter is deficient in B12, folate and vitamin D. We have sorted out treatment for the B12 and folate.

I’m slightly confused as to the reason K2 is needed with Vitamin D.

If vitamin D deficiency can cause depression and cognitive symptoms, then why would you want the vitamin D going to the bones by supplementing with K2.

I understand the need to remove calcium from the vascular system, but if you have cognitive problems then should you leave out the K2 to get the vitamin D to the brain?

Sorry if I’m being a bit thick.

3 Replies

Hypercalcemia is only a problem with very high levels of Vitamin D. As long as you stick to sensible doses and ignore the ‘If some is good, more must be better’ noises then K2 shouldn’t be necessary.


Note that the NHS recommends people should take 10 mcg (400 IU) day and definitely no more than 100 mcg a day.

sorry, i cant explain getting vitamin D to the brain question. but i want to make sure you are aware of the vitamin D /magnesium connection.

my original vitamin D test was 20 ng/ml.

i was told to take 5000 iu per day, with A and K, which i did for 16 months prior to going back to the doctor.

level was 39 ng/ml. doctor said to double the amount to 10,000 iu per day.

i did NOT do this. instead i started magnesium supplement of 110 mg 2X daily. next test was 70.9 ng/ml.


additionally, this was prior to testing positive for h pylori. so my D level corrected while i had h pylori.

Not sure this answers your question but Vitamin D is actually a hormone and has receptors throughout the body, including the brain.

I'd recommend the book, "The Miraculous Effects of High Doses of Vit D3 and K2..." by Jeff Bowles, who healed his old sports injuries with very high doses. I found bone spur on a fracture I'd had in my teens disappeared after I followed the advice in his book.

"When you take more of one fat soluble vitamins you create a greater need for the others. If those others are lacking, toxicity symptoms result."

"Although vitamin D on its own will increase osteocalcin production, together vitamins A and D have what scientists describe as "remarkable synergistic effect" to boost osteocalcin output 19."

"vitamin D stimulates the production of vitamin K2 dependent gla proteins, thereby increasing the body's demand for vitamin K2 and the potential to benefit from K2. That makes vitamin D a superstar because the more vitamin K2-dependent proteins you make, the more calcium you can direct to the bones and away from the arteries, if you have the K2 to activate those proteins".

From "Vitamin K2 and the Calcium Paradox: How a Little-Known Vitamin Could Save Your Life"

Kate Rheaume-Bleue

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