I have a questions about Vitamin K (Mk-7 which is from soy). I have heard that those on thyroxine are supposed to avoid soy, as it affects the function of Levo - is that true - does anyone know or have experience of this?
I want to take Vitamin D3 (I have osteoporosis), and have researched that it is best taken together with Vitamin K2. I have also read K2 can be MK-4 or MK-7, and that it's the soy (from Natto) that is in MK-7.
I am getting a bit confused as what best to take - any advice please?