I'd be a little curious as to what form of Vit K was being used... If it were Vit K3 (menadione), the synthetic from of Vit K, I'd be a little leery of it.
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."