An interesting article I found at
http://www.peaktestosterone.com/Boron_Testosterone.aspx

Boron - The Testosterone and Sex Life Booster

It's not very often I get excited about a trace mineral, but Boron is an exception. Boron ain't boring - let me tell you. Below I am going to outline one thing after another that boron does that is going to help you in the bedroom, including boosting free testosterone.

First of all, boron is a trace mineral that your body needs and, like magnesium, is used by and positively influences many of your tissues and processes. There is no RDA for boron, but a significant percentage of the population is well below the 3 mg/day threshold that many experts would recommend. In fact, the average is considered to be about 1.5 mg/day. [2] Here is just a partial list of what boron is known to affect: hormones, inflammation, blood plasma, vitamin D, bone maintenance and cognition/learning. [3] (NOTE: Tell your woman that there is evidence that boron can help with osteoporosis. [4])

Boron can also be fickle to get in the diet. Only certain plants contain boron and, unfortunately, things like soil and weather can affect boron content significantly. However, if you are eating one of the healthy, research-backed diets (such as Mediterranean, Low Fat, vegetarian or DASH), then it is possible to get upwards of 10 mg/day. [2] Plant foods, such as lentils, nuts, peanuts, avocado and certain fruits and vegetables, all generally have significant boron content.

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Researchers, in the above-mentioned study [1], decided to give participants boron levels near the upper end of what one can get through diet. They gave 8 healthy volunteers right around middle-age 10 mg of sodium tetraborate - Borax for you old-timers - on a daily basis. The results were remarkable.

Looks at the sex life-boosting properties that Borax exhibited:

1. Free Testosterone. Increased 28%. [5] (See my link on Free Testosterone for more information.)

2. Estradiol. Decreased 39%.[5] (NOTE: You do not want your estrogen to go too low. See my link on The Importance of Some Estrogen for details.)

3. DHT. Increased (not statistically significantly however).

4. Vitamin D. (not statistically significantly, but boron is a known increaser of Vitamin D)

5. C-Reactive Protein. Statisically significant decrease.

6. TNF-alpha. Statisically significant decrease.

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These six changes are a dream-come-true for us men. Notice the nice boost in free testosterone-to-estrogen ratio - this is going to do nothing but help the sex life of most men. And that's just the beginning of the good news. Other studies have shown that Boron is a huge inflammation fighter. (Some people even take it for arthritis.)

So who cares? Well, anything that fights inflammation, particular TNF-alpha and C-Reactive protein is very likely to improve your artery health, which will in turn improve blood flow, slow arteriosclerosis and do many other things to help you pump out more nitric oxide. Remember that C-Reactive protein is a broad measure of systemic inflammation that is strongly predictive of cardiovascular disease. And TNF-alpha is strongly predictive not only of heart disease, but also erectile dysfunction, diabetes, arthritis and many other nasty conditions. See my link on TNF Inhibitors for more information.

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REFERENCES:

1) J Trace Elem Med Biol, 2011 Jan, 25(1):54-8. Epub 2010 Dec 3, "Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines"

2) Reprod Toxicol, 1997 Jan-Feb, 11(1):123-60, "An assessment of boric acid and borax using the IEHR Evaluative Process for Assessing Human Developmental and Reproductive Toxicity of Agents. Expert Scientific Committee"

3) http://www.vrp.com/bone-and-joint/boron-higher-doses-necessary-for-cogni...

4) http://www.lef.org/magazine/mag2006/aug2006_aas_01.htm

5) http://robthoburn.wordpress.com/2011/02/02/boron-increases-testosterone-...