I am writing on behalf of my cousin, who is hypo and on NDT. She is taking Vit D3 and Vit K2 but is concerned as she is now also on blood thinners from her GP, following a kind of mini stroke. Is there anyone who can please advise about different types of Vit K and whether there is one that is compatable with warfarin? If not, should she stop the Vit D or just reduce it? She's taking 5000iu Vit D3/day. Many thanks.