Re boron, it reduces sex hormone binding globulin (SHBG) count and also enhances vitamin D absorption; Vitamin D has been shown to increase T.
I guess its natural in a sense that its naturally occurring in food, as long as said food wasn't grown in boron depleted soil...which seems to be prevalent in many places.
Boron in plasma increased significantly following hours and weekly consumption. Six hours supplementation showed a significant decrease on sex hormone binding globulin (SHBG), high sensitive CRP (hsCRP) and TNF-α level.
After one week (in samples taken at 8.00 A.M, only), the mean plasma free testosterone increased and the mean plasma estradiol decreased significantly.
Dihydrotestosterone, cortisol and vitamin D was elevated.
Also, concentrations of all three inflammatory biomarkers decreased after supplementation.
Of note, despite decreased proinflammatory cytokines, based on recent clinical data, this must be the first human study report to show an increase level of free testosterone after boron consumption.
www.ncbi.nlm.nih.gov/pubmed/21129941
Another boron paper with more data:
http://www.bioimmers...e_monograph.pdf
rosmarinic acid received a lot of attention in another thread for its first-rate inhibition of glycation (AGEs). it's also a potent GABA-T inhibitor... but the long-term tolerance concern is the same, as is witdrawal when you quit.
...
a GABA-B antagonist is actually more suited to this task long-term, such as ginseng or 5-aminovaleric acid (the body produces this from L-lysine)
but it's not good to get on too much of a tangent. something like ginger and onion juice is more direct...
Indeed withdrawal/tolerance and down regulator is an issue longterm.
That's interesting, I did not know this about lysine.
As an aside, lysine can also be metabolised by bacteria into piperidine which can form bio active abducts with aldehydes. So supplementing with lysine and consuming alcohol (increases acetalaldehyde) or any aldehyde or aldehyde dehydrogenase inhibitors might cause unexpected psychoactive effects.
Yes, onion juice and ginger seem like apt time tested methods. I dont really eat ginger as it doesn't suit my bodies constitution (in a TCM sense) and in a western sense, it can inhibit digestion when eaten with food.
Regarding onion juice, I have other preferred "less pungent" methods for upping T but am very familiar with it's beneficial testosterone boosting effects.
Edited by sativa, 22 July 2016 - 06:05 PM.