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If you take a lot of vitamine D, you also want to take some extra vitamine k2.

However, vitamin D and calcium supplementation along with vitamin K deficiency might also induce long-term soft tissue calcification and CVD, particularly in vitamin K antagonist users and other high-risk populations

(https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613455/)



And if you're using K2 for that reason, you may just as well make sure it's Mk7 all-trans.

I forget my source for that, but a quick search turns up a lot, even after you skip all the shops. For example [1], which seems reasonably serious.

[1] https://www.nutraceuticalbusinessreview.com/news/article_pag...


That is the one I buy usually indeed :)


Thanks! I bought some Mk7.




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