First question I have is there a difference between Glutamine & L-Glutamine? If so, which one is preferred, how much e/d, & is it something I should take on rest days?
I don't know a whole lot about it & I'm trying to figure out if it's essential to my workout?
Flathead
I don't know a whole lot about it & I'm trying to figure out if it's essential to my workout?
Flathead

