Shilajit Benefits for Men: What the Studies Show

The human evidence for shilajit in men is small but not empty. Three trials on purified or processed shilajit reported changes in testosterone, sperm parameters, or muscle fatigue, and each has limits: small groups, short durations, and in some cases ties to the product’s maker. Nothing we found shows that shilajit treats low testosterone, erectile problems, or prostate conditions.

This page maps what was measured, in which men, at what dose, and where the claims on product pages run ahead of the data.

Key Takeaways

• The only human trials we could verify that measured hormones or sperm used a processed or purified extract at 200 to 500 mg a day for 90 days. They don’t tell you what a raw resin or a gummy would do.
• A 2016 placebo-controlled trial in healthy men aged 45 to 55 reported higher total and free testosterone than placebo. The testosterone deep dive covers it in detail.
• A 2010 uncontrolled study of 28 men with low sperm counts reported improved sperm count and motility. With no placebo group, it can’t separate a shilajit effect from chance or lifestyle changes.
• A 2019 trial in 63 young men found less strength loss after fatiguing exercise at 500 mg a day, but only in a subgroup, and the product was a specific branded extract.
• No human trial we found tested shilajit for erections, libido, or prostate health. Claims in those areas rest on animal or tissue studies, or on tradition.
• Heavy-metal contamination is the most concrete risk for men of any age, so product testing matters more than the headline claim.

What “Benefits for Men” Usually Means in Search Results

Most pages answer this question with a list: more testosterone, more stamina, better sexual function, better fertility, more muscle. Those are five different claims with five different levels of evidence. Lumping them together is how a result in 28 men with low sperm counts becomes “boosts male vitality.”

The table below separates them. “Human” means a published trial in people; “animal” means rodents or tissue samples.

Claim	Best evidence we could verify	Strength of evidence
Raises testosterone	One placebo-controlled human trial (healthy men 45-55) and one uncontrolled study (men with low sperm counts)	Limited, small, single extract family
Improves sperm count and motility	One uncontrolled human study (n=28 completers)	Preliminary
Reduces fatigue or preserves strength	One placebo-controlled trial (63 young men); one rat model of fatigue	Limited, subgroup finding
Improves erections or libido	Rat tissue and rodent studies only	No human evidence found
Supports prostate health	No human trial found	None
“Natural alternative to testosterone therapy”	None	Not supported

The Testosterone Trials

Two human studies measured testosterone in men.

Healthy men, 90 days (2016). Pandit et al. ran a randomized, double-blind, placebo-controlled trial in Andrologia. Healthy volunteers aged 45 to 55 took 250 mg of purified shilajit twice a day (500 mg total) for 90 days. The authors reported significantly higher total testosterone, free testosterone, and DHEAS than placebo, with LH and FSH “well maintained.” The published abstract doesn’t give sample size or the size of the change, and we couldn’t access the full text to confirm them, so we won’t quote numbers here.

Men with low sperm counts, 90 days (2010). Biswas et al. (Andrologia, 2010) gave 100 mg of processed shilajit twice a day to oligospermic men. Serum testosterone rose 23.5% from baseline and FSH 9.4%. There was no comparison group, so the rise can’t be separated from natural variation.

A 2024 systematic review by Morgado et al. in the International Journal of Impotence Research (PubMed) looked at 52 studies of 27 proposed testosterone boosters. Its overall conclusion: most fail to increase total testosterone versus placebo. It rated a purified shilajit extract as “possibly effective” for men with late-onset hypogonadism, which is a hedge, not an endorsement.

What this does and doesn’t mean for you is the subject of the shilajit and testosterone page. A hormone number moving on a lab report is not the same as feeling or functioning differently.

Sperm Parameters and Fertility

The same 2010 study is the main human evidence. Of 60 infertile men assessed, 35 with total sperm counts below 20 million per ml were enrolled, and 28 completed. Compared with their own baseline, the authors reported higher total sperm count (+61.4%), more normal sperm (+18.9%), better motility, and lower semen malondialdehyde, an oxidative-stress marker (-18.7%).

Three cautions apply. It was uncontrolled. Sperm counts fluctuate widely in the same man from one sample to the next, which is exactly the problem a placebo group exists to solve. And it measured semen parameters, not pregnancies, so it says nothing about whether couples conceived.

Animal work points the same direction without proving anything for men. A 6-week rat study (Park et al., 2006) reported more sperm in testes and epididymides, and a 2018 mouse study in Andrologia (Mishra et al.) reported shilajit improved fertility measures in mice with cadmium-induced infertility. Rodent results often fail to translate.

If you and a partner are trying to conceive, a semen analysis and a clinician are the starting point. A supplement trial of this size is not a reason to delay that.

Strength, Fatigue, and Recovery

Men looking at shilajit often want energy rather than hormones, and the human data here is also thin.

Recreationally active young men, 8 weeks (2019). Keller et al. (Journal of the International Society of Sports Nutrition) randomized 63 men (average age about 21) into 250 mg a day, 500 mg a day, or placebo, with 21 per group. After a fatiguing leg-extension protocol, the 500 mg group lost less strength (8.9% decline versus 16.0% on placebo), but only among men in the stronger half of the group at baseline. The 250 mg group looked no different from placebo. The study used a specific branded extract and tested a subgroup after the fact, which makes it a hypothesis for future trials rather than a result to build on.

Healthy men, 28 days (2026). A single-arm pilot in Cureus (Yadav et al.) gave 25 men aged 21 to 55 shilajit resin at 500 mg a day and reported within-group improvements in leg press strength, endurance, and a fatigue scale. Total testosterone, a secondary outcome, did not change significantly (-2.7%). There was no control group, and several authors were employed by the company that makes the product, so the result is best treated as a pilot signal.

On the fatigue side, a rat study (Surapaneni et al., 2012) found shilajit reversed swim-stress behavior in a chronic-fatigue model. That is a rodent behavior test, not evidence about tiredness in men.

For timing questions, see how long shilajit takes to work.

Sexual Function and Libido: What Is Actually Known

This is the most-searched benefit and the least supported.

We found no human trial of shilajit with erectile function or libido as a main outcome. The nearest published work is a 2013 rat study in the American Journal of Men’s Health (Kaur et al.), which found shilajit relaxed isolated rat penile (corpus cavernosum) tissue in a dish and showed parasympathomimetic effects in live rats. The authors framed it as a possible mechanism behind shilajit’s traditional reputation as an aphrodisiac. A tissue strip relaxing in a lab bath says nothing about whether swallowing shilajit changes erections in a man.

The same study also reported shilajit lowered mean arterial pressure and heart rate in rats, which is worth knowing if you take blood pressure medication. See shilajit and blood pressure.

If a product page claims improved performance or libido, check whether it cites a human trial. If it cites the rat study or a testosterone trial, it is extrapolating.

Who Were the Men in These Studies?

Product pages say “men.” The trials studied narrower groups.

Study	Men studied	Size	Age	Dose	Design
Pandit 2016	Healthy volunteers	Not in abstract	45-55	500 mg/day, 90 days	Randomized, double-blind, placebo-controlled
Biswas 2010	Oligospermia (sperm count below 20 million/ml)	35 enrolled, 28 completed	Not in abstract	200 mg/day, 90 days	Open-label, no control
Keller 2019	Recreationally active	63 (21 per group)	About 21	250 or 500 mg/day, 8 weeks	Randomized, placebo-controlled
Yadav 2026	Healthy, moderately active	25	21-55	500 mg/day, 28 days	Open-label pilot, no control

Two things stand out. The only controlled hormone trial was in healthy men aged 45 to 55, not in men with diagnosed low testosterone, so it doesn’t speak to treatment. And the performance trials were in men around 21, which tells a 50-year-old little about what he’d see.

Safety Questions Specific to Men

Prostate and BPH. We found no controlled human trial of shilajit in benign prostatic hyperplasia or prostate cancer. The only item we located is a 1997 Russian-language report on a related preparation (Mumie-Vitas), which we could not assess. Because shilajit may nudge hormones in some men, anyone with a prostate condition, elevated PSA, or a family history should ask a urologist before starting. That is caution, not evidence of harm.

Testosterone therapy and fertility planning. The Endocrine Society guideline on testosterone therapy (Bhasin et al., 2018) advises against starting testosterone therapy in men planning fertility soon, with prostate cancer, or with a palpable prostate nodule or high PSA. Shilajit is not testosterone therapy, but those are the same men to flag to a doctor before experimenting with anything that might shift hormones.

Contaminants. Poorly purified shilajit can carry lead, arsenic, mercury, and other metals, and a 2025 analysis (Kamgar et al., BMC Chemistry) examined thallium in shilajit and its supplements. See the side effects guide for the full picture, and how to spot fake shilajit for quality checks.

Medications. Anyone on blood pressure drugs, blood thinners, diabetes medication, or testosterone therapy should clear it with a prescriber.

How to Evaluate a Product Marketed to Men

“For men” on a label usually adds nothing but a darker color scheme. A few checks matter more:

• Is the extract the one that was tested? Trials used processed or purified extracts at stated doses. A mystery resin isn’t the same product.
• Is there third-party heavy-metal testing? Ask for a lab report for the batch, not a logo.
• Does the label state the amount per serving? A “proprietary blend” hides how far the dose is from the studied range.
• Does it promise to fix low testosterone or a medical condition? That is a red flag. Low testosterone is diagnosed with blood tests, not a supplement.

The full framework is in best shilajit, and is shilajit legit covers the reliability of the claims more broadly.

Dosage and Format Pointers

The studied doses above ranged from 200 to 500 mg a day of processed or purified extract for four weeks to 90 days. The dosage guide explains how those numbers relate to a pea-sized serving of resin, capsules, or powder. If you’re weighing formats, shilajit gummies for men looks at the dose-per-gummy problem and sugar content, and the shilajit vs. tongkat ali comparison covers the other supplement men often weigh it against.

Talk to a doctor before starting if you have a chronic condition, take medication, or have symptoms like persistent fatigue or low sex drive that could have a medical cause.

FAQ

What does shilajit do for men?

In the human studies we could verify, men taking processed or purified shilajit showed changes in testosterone, sperm parameters, and exercise fatigue measures. The trials were small, short, and mostly on specific extracts. The evidence does not support claims that it treats a condition.

Does shilajit help with sexual performance?

We found no human trial with erectile function or libido as its main outcome. The relevant work is in rats and isolated tissue. Treat sexual-performance claims as unproven, and see a doctor if you have ongoing symptoms.

What age should men take shilajit?

There is no established age. The trials covered men from their early twenties to mid-fifties. Nothing tested older or younger groups for hormone or fertility outcomes, and nothing sets a recommended age.

Is shilajit safe for men with prostate problems?

No controlled human data exists that we could find. Men with BPH, an elevated PSA, or prostate cancer should ask a urologist first. Absence of data is not the same as safety.

Is the best shilajit for men different from regular shilajit?

Not in any way the evidence supports. The relevant questions are the same for everyone: which extract, what dose, and whether the batch was tested for heavy metals.

Can shilajit replace testosterone therapy?

No. Trials measured small hormone changes in men with ordinary levels, not as a treatment for diagnosed low testosterone. A deficiency needs testing and medical evaluation.

Bottom Line

Shilajit has a small, honest evidence base in men: one placebo-controlled testosterone trial, one uncontrolled fertility study, and one controlled fatigue trial in young men. Each used a specific processed or purified extract, and several have manufacturer ties. Sexual function and prostate claims have no human trials behind them. If you try it, choose a batch-tested product, stay near the doses studied, and see a doctor about symptoms, not a supplement.