THE BASIC PRINCIPLES OF K2 POWDER

I have recently begun supplementig K2 (from natto) and I get menstrual-like cramps (even in the middle of a cycle) given that the first working day of doing so. I don’t get any cramps if I skip getting vit K2. Shall I prevent using the supplemnt?In which does the butter taste come from if it’s not fermented. I’ve normally considered that butt