A Healthy Gut and Probiotics Boost Testosterone Production

probiotics increase testosterone production

In recent years, the gut has been found to have several other functions aside from just digestion.

The gut is tied to mental well-being, with up to 90% of serotonin produced in the digestive tract. For years I thought the production of serotonin and other neurotransmitters was a process completely isolated to the brain… but your stomach plays a massive role in the process. Studies have actually shown that probiotic use may help alleviate depression!

Your stomach plays a critical role in your immune system function as well, with a large part of the body’s defense against foreign microscopic invaders taking place in your GI tract… “leaky gut syndrome“, once commonly thought to be naturalistic mumbo jumbo, appears to indeed be an actual phenomenon, as science is showing… The gut, when “leaky”, causes impermeable surfaces to become permeable, allowing bacteria and viruses to enter into the bloodstream with weakened defenses…

Probiotics have been found to improve immune system function in studies… as well as provide other big benefits to us as men.

Probiotics Boost Testosterone Levels in Men (And Mice)

testosterone benefits for men

The first study carried out measuring how probiotics affect testosterone production was carried out on mice.

Aging mice were split into two groups, with one group given the probiotic strain Lactobacillus reuteri in their drinking water and the other just regular drinking water.

The group ingesting the probiotic culture had larger testicles, higher testosterone levels and improved sperm quality compared to their age-matched controls.

In a later study, carried out on humans, men given Flortec (a probiotic Lactobacillus paracasei with prebiotic) increased their sperm count and quality, and improved testosterone production without raising estrogen levels.

When it comes to advice for boosting testosterone production, you always get the same — lift weights, sleep well, increase vitamin D, eat red meat, eggs, spinach,  etc… but rarely do they ever say to take a probiotic supplement…

As a man, you should strongly consider adding a probiotic supplement to your daily vitamin / health routine.

Probiotics For Testosterone – Which Probiotic Brands Contain the Cultures Found to Increase Testosterone Levels?

probiotics for testosterone production

For my own research purposes, I investigated which probiotic brand / company contained the specific cultures mentioned in the above studies. I get the feeling, however, that many of these related strains would work, as in the two above-mentioned studies, different types of Lactobacillus showed a strong positive testicular and hormonal influence.

In the end I found two brands that were not only among several “top probiotic review” lists, but also contained the two strains mentioned above, among strains found to have positive effects on immune system function, which is a plus.

The two I found among the top lists that contained all the cultures I was looking for were:

  • Hyperbiotics PRO-15 Probiotics
  • Vitamin Bounty Pro 50 Probiotic with Prebiotics

The Hyperbiotics brand was not only found higher in ranking (not by much, just a bit), but additionally contained the particular culture found in the impressive study on rats… Also, its recommended dosage was one capsule as opposed to two, with the same quantity of capsules, so will last me twice as long.

Both are available on Amazon.

How Healing Your Leaky Gut Improves Testosterone Production – Along with Immune System

leaky gut and testosterone levels in men
When the mucosal barrier of the stomach breaks down, this can allow intestinal bacteria (endotoxins) and other unfriendly elements to enter into your circulation, leading to inflammation. This inflammation caused by the exposure to endotoxins is tied to lower testosterone levels. This inflammation also hoards immune system resources which should be used for fighting off viruses, bacteria and other foreign bodies.

According to Marcelo Campos, MD of Harvard Vanguard Medical Associates and lecturer at Harvard Medical School:

“Modern life may actually be the main driver of gut inflammation. There is emerging evidence that the standard American diet, which is low in fiber and high in sugar and saturated fats, may initiate this process. Heavy alcohol use and stress also seem to disrupt this balance.”


“…it is always a good idea to eat a nutritious, unprocessed diet that includes foods that help quell inflammation (and avoids foods known to trigger inflammation), which may, at least in theory, help to rebuild the gut lining and bring more balance to the gut flora.”

Reducing intake of sugar and saturated fats, adding more fiber to your diet such as oats and reducing alcohol consumption can help to heal the gut. Glutamine (also found in oats) has been shown to greatly improve gut function (as well as alcohol-induced liver injury), so can be a helpful addition to your health regimen as well.

Looking for Natural —yet Scientifically-Backed — Ways to Improve Your Sexual Strength and Performance?

Since my early 20’s I’ve researched into natural (non-medical or surgical) ways to improve my own sexual performance, including how to delay ejaculation, strengthen my erections, improve libido and testosterone production, increase my “size” (yes it’s possible), and have greatly transformed my own sexual performance, abilities and “characteristics”.

I’ve written everything I know into my guide, here…

If interested, or any questions you may have, just let me know! I’me here!

Have a good one,

-David Carreras aka Mr. Manpower
Mr. Manpower’s Guide to
Overall Manhood Enhancement
[email protected]

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