N=1 Science: The Great K2 Debate
By Lomeloth - Own work, CC BY-SA 3.0
Many years ago – 8?? I'm not really sure – I started supplementing vitamin K2. I began taking it for reasons of heart-health. However, after I started supplementing it I discovered it had a noticeable and almost immediate effect on my oral health. Suddenly my teeth were glossy and smooth. They felt like after a professional cleaning. 'Morning breath' was also very noticeably lessened, absent even. After a year or so I even stopped brushing my teeth in the morning, seeing no point to it – I don't eat breakfast except on weekends. I do brush afterwards on days I eat breakfast. I also brush every evening immediately before bed using a Philips Sonicare toothbrush.
I also noticed that if I ever went much beyond a week or so without supplementing K2 I'd be reminded by a combination of my teeth no longer feeling smooth and glossy and a return of “morning breath.” It wasn't bad morning breath by any means, more of a not fresh-in-the-mouth feeling, but compared to nothing at all, which is to say having my mouth feel pretty much the same first thing in the morning as anytime else during the day, it was an unmistakeable difference.