I recently did a hormone panel and saw my sex hormone binding globulin was at 76 nmol/L (in the RED) on a reference scale of 10 - 57. The highest max level on this chart was 80 nmol/L, where I seem to be in the highest tier. This effectively drops my calc free T down to 7 ng/dL, again in the RED below the normal reference range low's, while total T was in the clear in the mid 600's. Ultimately, I believe this is a side effect of my low-carb diet + IF regimen, as my IGF1 was also down to 76 ng/mL and TSH was up around 2.755 ulU/mL -- I've read low IGF1 correlates with high SHBG. The low IGF1 is a little odd, as I'm not very calorically restricted, I lift heavy weights, and my diet has plenty of meat, methionine, and often supplemental Whey + BCAAs.
In reading around, I saw Boron supplementation and Zinc supplementation listed as possible ways to counter-act the high SHBG (short of eating more carbs and more calories more often.) I also read that Boron might increase serum copper, with copper and zinc possibly associated with Alzheimer's / cognitive issues later in life (I carry the apoE4 gene, so I'm generally more concerned with cognitive + cardiovascular issues than optimal free T.)
Would it make sense to supplement something like 3mg of boron (glycinate?) on workout days (2-3x/wk), then do L-OptiZinc (or Zn Carnosine?) @ 30mg once a week (with the boron?) Or, am I likely better off without these with overall health in mind? I was also reading that stinging nettle root extract might be useful.
Edited by brosci, 28 May 2017 - 04:12 PM.