Vitamin K2 & Testosterone

What Is Vitamin K2

Vitamin K2 is associated with a host of health benefits, the most prominent of which include preventing heart disease (4) and increased bone mineral density (5).

How Does It Impact Testosterone?

There have been no human trials in this area, but some rodent studies provide interesting results:

  1. Rats given 75mg of vitamin k2 per kg of bodyweight experienced nearly a doubling of their testosterone levels (6).
  2. In another study, vitamin K deficiency in rats significantly reduced their testosterone levels (7).


Vitamin K2 can provide tremendous benefits and should be included as a part of any healthy diet. It has also been shown to be associated with significantly higher testosterone levels in rats. Whether this effect carries on to affect us in the same way is hard to say.


David Becker, RN, CCRN
David Becker, RN, CCRN Mr. Becker is a father, husband, and CCRN in Trauma ICU. You can read his inspiring comeback story From 412ng/dl To 923ng/dl In 6 Months - Without TRT. Feel free to send David a message here.