While I and many others I knew took it way longer than recommended and survived with no noticeable long term effect - you could FEEL the shit fucking up your liver at the time. Everybody pretty much reported lower right side abdomen "pains/ burning sensation" at some point. The gains were otherworldly , not only on par with "real" juice but in some ways superior. Time will tell what we really did to ourselves I suppose.
The idea that someone's cholesterol and liver values were unaffected by a long run with the substance seems unlikely to me.