Apart from age, dietary protein intake is the major regulator of IGF-1 levels, especially animal protein
Three receptor pathways means three separate adaptation processes happening simultaneously, and rushing any one of them creates problems
In fact, this study shows that the levels of these molecules are significantly lower in joint fluid than in the blood/plasma and may be incidental to the function of the joints. Jeffrey Zarin, MD Also, there did not seem to be a difference between patients that had arthritis and those that did not, so conclusions about the effect of GLP-1 on arthritis should also be interpreted cautiously, Zarin added
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These are unstable molecules that can cause oxidative stress, which is essentially "biological rust." This oxidative stress can damage your DNA, cell membranes, and proteinsincluding collagen