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Didnā€™t you say f*** testosterone despite it improving bone density? Appears boron increased T

ā€œTestosterone more than doubled, rising from an average of 0.31 ng/mL to 0.83 ng/mL.ā€

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4712861/

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Boron is linked to immune system health, too. Apparently it helps maintain thymus function. There are a couple of papers on this topic based on work done on (wait for itā€¦ā€¦ā€¦.)

Ostriches! (Not exactly the first experimental animal that springs to mind!!)
Just search Google Scholar for boron and thymus.

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Looked into this a bit to modulate down my SHBG down a bit and it looks like a possibly good reward to risk play for a lot of things, see eg

Boron has been proven to be an important trace mineral because it (1) is essential for the growth and maintenance of bone; (2) greatly improves wound healing; (3) beneficially impacts the bodyā€™s use of estrogen, testosterone, and vitamin D; (4) boosts magnesium absorption; (5) reduces levels of inflammatory biomarkers, such as hs-CRP and TNF-Ī±; (6) raises levels of antioxidant enzymes, such as SOD, catalase, and glutathione peroxidase; (7) protects against pesticide-induced oxidative stress and heavy-metal toxicity; (8) improves brain electrical activity, cognitive performance, and short-term memory in elders; (9) influences the formation and activity of key biomolecules, such as SAM-e and NAD+; (10) has demonstrated preventive and therapeutic effects in a number of cancers, such as prostate, cervical, and effects of traditional chemotherapeutic agents. Americansā€™ daily dietary intake of boron was estimated to be approximately 1 mg/d in 199

In none of the numerous studies conducted to date, however, do boronā€™s beneficial effects appear at intakes of less than 3 mg/d. No EARs or DRIs have been set for boron; only a UL of 20 mg/d for individuals aged 18 years or older. The absence of studies showing harm in conjunction with the substantial number of articles showing benefits support the consideration of boron supplementation of 3 mg/d for any individual who is consuming a diet low in fruits and vegetables or who is at risk for or has osteopenia; osteoporosis; OA; or breast, prostate, or lung cancer.

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I was convinced by the research that a boron supplement was warranted in my case.
I bought a 400gm jar of boric acid (sold as cockroach bait!! LOL). Had to get it online as the Nanny State (Australia) made it very hard to obtain. I know itā€™s not very bioavailable but it has to be better than nothing.

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You mean products such as shown below are not sold in Australia?

https://www.swansonvitamins.com/p/swanson-premium-triple-boron-complex-3-mg-250-caps

Yes, I could have bought that.
But the boric acid is extremely cheap.

What I meant was that, years ago, you could buy boric acid in chemist shops, hardware stores etc. Now they donā€™t sell it and I found mine by shopping online. The container is covered with ā€œPoisonā€ signs and you would think itā€™s as dangerous as plutonium, while itā€™s about as toxic as table salt.
Sorry for the confusion.

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Do we have any idea of the magnitude of the expected impact of 3mg per day of boron on SHBG?