This could be a misunderstanding of the mechanisms involved. Research started with the knowledge that diets with plenty of K2 have positive health effects incl

This could be a misunderstanding of the mechanisms involved. Research started with the knowledge that diets with plenty of K2 have positive health effects including a reduction in cancer. However, the usual way of increasing K2 in the diet is to eat more fermented foods. Fermented foods are also associated with healthy gut flora. It is quite possible that the K2 is not the key but rather what is going on is eating fermented foods helps maintain a healthy gut which then in turn leads to positive health effects. Just some speculation.