Boron Study Shows 28% Testosterone Increase -39% Estrogen Decrease

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Boron citrate, is crucial to human health and maximized testosterone levels but oddly enough, there is no set recommended daily allowance.

That said, 10 mg supplemented daily appears to be the sweet spot for your testosterone, according to a recent study.

Any less than 10 mg and you may not get much benefit from it with regards to your T levels. However, there is no evidence more than 10 mg is beneficial and in fact, trying to supplement with high dosages (20mg daily or more) could be harmful. (1)

Boron Deficiency 

Because there is no set daily recommendation it’s hard to say when someone is deficient, however, boron is a bit hard to come by in food.

Avocados are one of the highest volume contributors of boron but you would have to eat an entire cup just to get 1.7 mg’s of it. Therefore, if getting 10 mg’s everyday is your goal, you would need to consume 5 cups of avocado’s.

Personally, I love avocado’s. They are a rich source of several key nutrients including important fats which can help boost your testosterone but to eat 5 cups a day is a bit much even for me.

Human Study on Boron and Testosterone

The effect of supplementation on free levels of testosterone is pretty incredible.

Males given a daily boron supplement of 10 mg, everyday for 7 days, realized an outstanding 28.3% increase in their free testosterone. Perhaps just as impressive, their estrogen levels dropped -39%. (2)

We would like to see more studies done over a longer period but when you see T levels go up and estrogen levels go down that much, it’s impressive!

Sex Hormone Binding Globulin (SHBG)

While free testosterone shot through the roof, which is crucial to your ability to gain muscle, lose fat and increase strength; total testosterone did not get a significant increase.

If you’re anything like me, you are probably wondering how on earth free T could take such a big jump, while total T remained relatively unchanged.

That is because of the crucial interplay between boron and SHBG in the blood.

Sex Hormone Binding Globulin is a protein made by your liver. It’s job is to bind to mission your sex hormones (estrogen; dihydrotestosterone (DHT), and testosterone) and carry them throughout your body via your bloodstream.

Overall this is a good thing as SHBG helps to keep your body regulated. However, as testosterone increases so does your SHBG levels.

Just because your T levels are increasing, your bodies ability to use it for things like strength and muscle building could still be limited because it’s being bound by SHBG instead of being “free”.

This is where boron steps in as it appears to reduce the amount of SHBG in your blood, thereby increasing the amount of free testosterone available to your body.

Conclusion

We were unable to find a single human case study showing positive effects of supplementation with less than 3 mgs per day.

In the only human study on boron and testosterone, the dosage used was 10 mgs per day.

Given the difficulty in getting large quantities of boron citrate in your diet, we recommend you supplement with 10 mgs every day to maximize your testosterone.

Resources

  1. Medlineplus.gov – Link
  2. Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines. Naghii, M.R. – Link

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