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More magnesium, more free testosterone

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Maurice Boscorelli

Senior Member
Joined May 30, 2010
Messages 19,337
Men with more magnesium in their blood are likely to have a higher amount of free testosterone in their body. Chemical analysts draw this conclusion in an article published in the Journal of Pharmaceutical and Biomedical Analysis.


About two percent of the testosterone in the body is active: it is not attached to binding proteins which prevent testosterone from interacting with its receptor. About forty percent of the body’s testosterone is attached to albumin, a protein that can let go of the hormone. Free testosterone and testosterone attached to albumin are referred to as bio-available testosterone.

About sixty percent of the body's testosterone is attached to sex hormone binding globulin (SHBG) [spatial structure above]. Androgens bound to SHBG lose their anabolic effect but probably retain their androgenic effect. In the prostate, for example, there are SHBG receptors and they send error signs to the prostate cells if they attach themselves to SHBG with androgens bound to it. Androgen steroid hormones incorporated by SHBG therefore do have undesired effects, but no desirable effects.

As men get older, SHBG sweeps up more and more testosterone. This is also because older men eat less protein. Low protein consumption raises the concentration of SHBG in the blood. A higher protein intake results in more albumin, and that increases the amount of bio-available testosterone. Within limits, of course.

The researchers, linked to the Université de Franche-Comté, extracted SHBG from the blood of young men, and exposed the protein to magnesium ions. Then they measured how fast the testosterone attached itself to SHBG at increasing magnesium concentrations. The higher the magnesium concentration, the lower the attraction.

Although the researchers did not examine whether more magnesium actually leads to more free testosterone in humans, they believe their findings are meaningful at the physiological level.

"The results presented here provide evidence for an Mg[SUP]2+[/SUP]-mediated variation of the testosterone-SHBG association, suggesting that an increase of the Mg[SUP]2+[/SUP]-concentration inside the biological concentration range (0.75mM-1.0mM) could lead an enhancement of the bioavailable testosterone", they write.

Fifteen years ago researchers examined the effect of extremely high – and biologically improbable – magnesium concentrations. These led to a small decline in the testosterone level. [Horm Metab Res. 1993 Jan;25(1):29-33.]

The researchers have announced that they will soon be publishing their findings on the effect of plant substances on the binding of testosterone to SHBG.

Magnesium in food is found in plant products. Good sources are fibre-rich breakfast cereals, spinach, nuts and beans.

Sources:
Journal of Pharmaceutical and Biomedical Analysis, doi:10.1016/j.jpba.2008.10.041

https://www.ergo-log.com/magnesiumtest.html
 

peace

Reviewer
Joined Dec 23, 2010
Messages 29,082
:good: ...would magnesium supplements help? I often eat vergetabes but should add spinach and beans more often.
 
Joined Sep 10, 2015
Messages 1,482
Magnesium can act as a sleep aid, fyi.

If you have trouble sleeping, taking 250 - 500mg pill of magnesium can help you fall asleep.
 

oldguyzer

Reviewer
Joined Jun 19, 2011
Messages 15,082
FWIW I have been taking Magnesium supplements for a while, based on a review of the medical literature. While it's difficult to say what has gotten better in that time, I have not noticed any side effects from taking the supplements.
 

Prim0

Senior Member
Joined Jun 29, 2010
Messages 10,859
Found some magnesium to ingest...

 

Loophole

Senior Member
Joined Aug 25, 2011
Messages 220
Thanks Maurice, MAL and Olguyzer.

Plan to use it and will get back to you after a month.
 
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