By Jack Tips, Ph.D., C.C.N.
For decades, men’s health has been reduced to a few numbers: testosterone, PSA, and sperm count. Those measurements matter. But a newer question belongs in the conversation: What are the microbes doing with the hormones and nutrients moving through the body?
The gut microbiome is a working chemistry lab with direct support for men’s health.
It transforms fiber into short-chain fatty acids, helps train immune responses, and modifies steroid hormones.
Consider the body’s own mail-in system: the liver attaches a chemical “processed” stamp to some androgens, helping route them toward elimination.
The liver attaches a glucuronic-acid “processed” stamp to some androgens, routing them toward bowel elimination. Certain gut bacteria carry β-glucuronidase—the enzyme that can peel off the stamp and send a hormone back into circulation. All part of Nature’s carousel of self-regulatory processes.
The extent of that return in living men remains under-studied. The hypothalamus and pituitary provide Supreme Court oversight, rulings to adjust hormone signals through feedback. But they do not inspect every envelope the microbes reopen.
Prostate Cancer: Gut Microbiome Link
In a 2024 study of 181 men undergoing evaluation for prostate cancer, researchers found different gut microbial profiles in men with cancer and those with benign findings. Their analysis predicted greater microbial 5-alpha-reductase activity in the cancer group. This enzyme helps convert testosterone toward the more potent androgen (dihydrotestosterone). This association puts the gut on the hormonal ballot.
The relationship is bi-directional — runs both ways. Androgen-deprivation treatment for prostate cancer changes the gut microbiome unfavorably.
Laboratory researchers identified bacterial genes that convert steroid precursors into androgen-related compounds. In some settings, microbes influence the hormonal environment that treatment is trying to control. The votes are still being counted, but the straw vote points to the medical therapy causing damage with one hand while trying to help with the other.
What about the campaign promise that a probiotic will “boost testosterone”?
A 12-week randomized trial found that Limosilactobacillus reuteri (ATCC PTA 6475) did not raise testosterone in healthy men aged 50 to 65, despite encouraging animal work. Species and strains matter, as well as the commensal population. And now Science is looking at other species.
There are fresh clues about the enlarged prostate, too. Researchers comparing men with different prostate volumes found associations among gut microbes, microbial metabolites, and prostate measurements. Akkermansia (featured in Metabolic µBiomic) and its impact on amino-acid metabolism were among the leads.
Fertility offers another window. A recent study of men with poor sperm motility found fewer butyrate-producing gut bacteria and disturbances in butyrate metabolism. Butyrate, produced when microbes ferment fiber, helps maintain the intestinal barrier and participates in immune signaling.
Clinicians implementing the Holobiome Roadmap for gut rejuvenation often employ EpiGenic for its butyrate component when stool tests show a dearth of butyrate-producing species. This is a “front-end” acute process, a stop-gap, until the person’s diet supports butyrate production.
The practical lesson is to support the ecosystem, not campaign for one “male hormone microbe.”
Feed a diverse microbiome with vegetables (especially cruciferous), fermented foods, beans, berries, fruit, and other fiber sources; attend to metabolic health; and investigate urinary symptoms or infertility on their own merits.
For therapeutic support, Systemic Formulas / Alimentum Labs offers Metabolic Superfood and Hormone Superfood for specific support of species that favorably impact male hormonal health.
Men’s health has always involved hormones. Now we can ask a better question: Who else is handling the mail before the body gets the final say?
Male Hormone Comprehensive Protocol
- Hormone Superfood: 1 scoop in 8 oz water
- Hormone µBiomic: 2 capsules with Hormone Superfood
- M+: 2 capsules with 2 meals/day (male endocrine support with libido factors)
- Mpc – Prostata Corrector: 2 capsules with 1 meal/day away from M+ (prostate support with anti-fungal factors)
- Mpr – Prostata Ovatum: 2 capsules with M+, 2 meals per day (prostate support via fatty acids)
Enhancing support
- TMI: 1 capsule with Mpc – Prostata Corrector formula
- Ga – Adrenal: 1 capsule with 2 meals/day
Resources:
- Kalinen et al., Eur Urol Open Sci (2024): https://pubmed.ncbi.nlm.nih.gov/38500636/
- Ljunggren et al., Basic Clin Androl (2024): https://pmc.ncbi.nlm.nih.gov/articles/PMC11103415/
- Gut microbes and androgen production, Nature Microbiology (2025): https://pubmed.ncbi.nlm.nih.gov/40259019/
- BPH microbiome and prostate volume: https://pubmed.ncbi.nlm.nih.gov/41573337/
- Gut dysbiosis and sperm motility: https://pubmed.ncbi.nlm.nih.gov/41929479/
- Testosterone deconjugation by gut bacterial enzymes: https://pubmed.ncbi.nlm.nih.gov/36623880/
