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Effects of Boron on Testosterone Levels (Science-based)

Jordan Smith
Published by Jordan Smith
Fact checked by Donald Christman, BHSc FACT CHECKED
Last updated: April 21, 2023
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Boron is not as widely known as other minerals like magnesium, potassium, fluoride, or zinc, but it plays a vital role in the body.

Research of the importance of boron dates back decades and has found it essential to bone formation and maintenance, joint health, and having a significant positive effect on wound healing and hand-eye coordination.

If you are curious about the impact of boron on testosterone levels in your body and considering adding it to your vitamin regimen, we’ve done and extensive two-week research on this topic and decided to shed a light on it in this article.

Quick Summary

  • Boron is a trace element found in our environment like on rocks, and soil, and it helps to naturally increase testosterone levels.
  • The free testosterone triggered by boron doesn't attach to any protein, leading to improved sexual function, increased muscle mass, and body hair growth.
  • Some common sources of boron include dried beans, coffee, apples, potatoes, and broccoli.

What Is Boron and How Does It Relate to Testosterone?

powder and pills

Boron is a trace element readily found in our environment, including mineral deposits in soil, ocean, and rocks. Boron is considered a micronutrient that holds much value for the human body, including

  • Maintaining strong joint and bone health
  • Vital for wound healing
  • Positively affecting the body’s use of vitamin D
  • Impacting natural testosterone levels
  • Increasing estradiol levels
  • Improving body’s use of estrogen

Let’s Look at Boron’s Effect on Testosterone Levels

Research has found that boron improves the metabolism of total testosterone into free testosterone, a sex hormone (androgen) that freely circulates throughout the blood system, not bound to sex hormone-binding globulin (SHBG) or albumin proteins.

Because unbound testosterone does not attach to any protein, it interacts with androgen receptors, leading to healthy sexual function and other secondary sexual characteristics like a deeper voice, body hair growth, and increased muscle mass.

What Foods Contain Boron?

For most people, boron intake levels are achieved sufficiently through diet.  An adult in the United States consumes 1.5 mg on average daily.

Common sources of boron include:

  • Broccoli
  • Potatoes
  • Apples
  • Dried beans
  • Coffee

Other Benefits and Potential Side Effects of Boron

man muscles

Boron interacts with sex hormones and plays a critical role in the well-being of other body functions.

For instance, research has shown boron to be effective in treating osteoarthritis, helping build muscles, and improving cognitive skills.

There is also an increasing number of studies suggesting boron has anticarcinogenic properties.

Another benefit of boron comes in the form of boric acid as a successful antifungal and antiviral treatment against ailments like vaginal yeast infections.

Boron may aid the body in absorbing vitamins and minerals, which improves blood flow, leading to maintaining balance in male sex hormones like testosterone.

If you are experiencing boron deficiency, eating specific foods with a higher mg of boron, like prunes and avocados, is a great place to start. If the boron amount in your diet is still not enough, boron supplements are generally safe when taken at the suggested dose.

How Much Boron Is Safe? 

1 to 13 mg is considered a safe range of boron intake for adults.

Whether gained from diet or boron supplements, the amount should not exceed 20 mg per day in adults, male or female.

Boron consumption above this level can have serious side effects and has proved to be fatal. Taking boron in excess can lead to the following adverse effects:

  • Nausea
  • Vomiting
  • Headache
  • Indigestion
  • Diarrhea

Boron Supplementation and Free Testosterone Levels

man pouring pills

Low testosterone production can adversely affect the body in several ways.

Physical conditions include reduced muscle mass, erectile dysfunction, decreased libido, and non-physical symptoms like depression, fatigue, and irritability. Boron and testosterone levels are linked.

How much boron boosts free testosterone levels is continuing to be studied, including supplementation on plasma steroid and how it relates to testosterone production.

What researchers have learned so far is that boron:

  • Significantly increases unattached testosterone levels
  • Greatly reduces estradiol
  • Permits more unbound testosterone to attach to protein in your blood

One brief study with participants supplementing 10 mg of boron daily for one week showed a significant increase in free testosterone levels and an equally notable decrease in estradiol.

Another study looked at the comparative effects of consuming the supplement daily and weekly.

This study aimed to determine if acute (daily) and weekly boron supplementation affected plasma steroid hormones and proinflammatory cytokines.

Researchers gave a daily dose of 10mg to a small number of male participants. The results again showed a significant decrease in estradiol and an increase in free testosterone.


Does Boron Increase Estrogen?

It is unclear whether boron increases estrogen.  Researchers found that boron positively impacts the body’s use of vitamins, estrogen, and testosterone.

Some information supports boron increasing estrogen levels in post-menopausal women.

Does Boron Boost Testosterone Levels?

These small studies related to boron’s effects seem to offer positive results, but there still lacks concrete evidence to support the claim definitively.

Which Boron Is Best for Testosterone?

The boron supplement best for testosterone is one that contains boron citrate.  Supplements that focus on increasing testosterone will generally have this type of boron.


There are a lot of positives when looking at the effect of boron as a supplement related to testosterone. Most notably, how boron helps testosterone metabolize into unbound testosterone.

Generally, establishing healthy eating habits with a variety of fruits and vegetables is enough to achieve levels of good health.  The effect of boron supplementation, even for short periods, could prove beneficial for various health conditions, including low testosterone.

Increased testosterone can lead to improved energy, focus, libido, and increased muscle mass.

So, should you consider boron supplements to increase testosterone levels?  It appears boron administration, either stand-alone or in a multivitamin, is a good option, but check out other worthwhile testosterone boosting supplements for men we often suggest our clients to try.


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