@rjd

I first came across the P1NP : CTX ratio idea on this site via someone else's post. See below for the veey interestung video.

VIDEO of P1NP : CTX/1,000 (Anabolic > 150)
https://connect.mayoclinic.org/comment/1558097/

@rjd Also, I can't recall where I heard they are now thinking the anabolic threshhold is closer to 130 (rather than 150). It may have been on the video from the Washington DC 2026 symposium that provided a summary of some key updates and guideline changes, etc. It was a recent post, either earlier this week or maybe last week. Pretty sure that's where I heard the 130 for the first time.