Vitamin D3

[rocky83]

I'm sure for those that do their research already are on to this, but I've noticed that incorporating vitamin D3 into my daily supplement intake has made a difference for me in response to muscle growth.

[guns01]

I'm sure for those that do their research already are on to this, but I've noticed that incorporating vitamin D3 into my daily supplement intake has made a difference for me in response to muscle growth.

make sure the d3 you are using has k added to it or it's basically worthless. i am pretty sure k2 is the reason that d3 is actually absorbed and used