Hi Tom, Chirley
I am taking menatetrenone (MK4), as this is what was used in the Japanese research. I started on this stuff from Thorne Research http://www.thorne.com/Products/Vitamins/prd~K170.jsp
. Now on tablets http://www.yourhealthbasket.co.uk/in...t_detail&p=664
From what I understand, MK7 is synthesised from gut bacteria, I have just started taking an industrial-strength probiotic called VSL3, which (theoretically, anyhow) should boost MK7.
Unfortunately I am on so many supplements it is hard to tell what is/isn't working, and it is all rather expensive! Also I suspect that any supplements take weeks/months to have an effect on haemoglobin.