Evidence at a glance
The strongest men’s topics have one small randomised trial each; others are weaker. How ratings work: evidence rating system.
Evidence by topic
| Topic | Rating | Key evidence | Full review |
|---|---|---|---|
| Testosterone | Limited | One randomised trial, men aged 45–55[1] | Testosterone |
| Strength and muscle | Limited | One 8-week randomised trial[2] | Exercise |
| Libido and sexual function | Limited | Small studies; see the full review | Libido |
| Sperm quality | Very limited | Uncontrolled study of 35 men[3] | Fertility |
| Energy and fatigue | Very limited | Indirect, from the exercise trial | Energy |
| Prostate and urinary health | Not studied | None found | Kidney and urinary |
What the studies have in common
The controlled men’s trials share three features. They are small, they each test one outcome, and most used the same purified, standardised extract.[1][2] That consistency of product is useful for research but means results can’t simply be applied to any shilajit on sale. None of the findings has been repeated by an independent research group; see who funds shilajit research.
Where marketing outruns the evidence
- “Natural testosterone booster”One trial, one age group; see the claim checked.
- “Increases stamina”Not tested as everyday stamina.
- “Prostate support”No research found.
- “Clinically proven for men”See clinical claims.
Safety for men
Men taking prescribed medicines, including for blood pressure, diabetes or heart conditions, should check with a GP or pharmacist first, because interactions haven’t been well studied. Competitive athletes should use batch-tested products, as UK Anti-Doping advises.[4] Contaminant exposure matters for daily use, so choose a product with a batch report.[5] See medication interactions and sport and anti-doping.
If you decide to try shilajit
Choose a product with a batch-specific laboratory report, follow the label serving, and give it a fair, time-limited trial while noting how you feel. Don’t combine several shilajit products, and stop if you notice side effects. For product selection, see how to choose shilajit and our evaluated shortlist.
When to see a GP instead
Persistent tiredness, low libido, erectile problems, or urinary symptoms can have medical causes that need assessment. A supplement shouldn’t delay that. Erectile problems in particular can be an early sign of heart and circulation issues.
Reading men’s health marketing critically
Men’s supplements are among the most heavily marketed products online, often with “alpha”, “vitality” or performance language that implies medical effects. Ask three questions of any claim: which study supports it, were the participants like me, and did they use this product at this dose? For shilajit, the answers usually point back to two small trials of one extract in specific groups of men.[1][2] See evidence vs marketing.
Does age matter?
The testosterone trial studied men aged 45–55, and the exercise trial studied active men. Results may differ in younger men, older men, or men with health conditions, none of whom were studied. Older men are also more likely to take medicines, which makes a pharmacist’s check more important; see older adults.
Shilajit in men’s blends
Men’s products often combine shilajit with zinc, ashwagandha, tongkat ali or other ingredients. Zinc has an authorised claim about maintaining normal testosterone levels;[6] shilajit doesn’t. In a blend, check which ingredient each claim refers to, and the amount of each per serving. Comparisons are covered in shilajit vs ashwagandha and shilajit vs tongkat ali.
The bottom line
For men, shilajit has a few promising but small studies, mainly on testosterone and strength, each needing replication. The popular promises go much further than the evidence. If you try it, choose a documented product, keep expectations realistic, and see a GP about symptoms rather than self-treating.
Frequently asked questions
What are the proven benefits of shilajit for men?
Does shilajit help erectile dysfunction?
It hasn’t been shown to. Erectile problems need medical assessment, and treatment claims are medicinal claims.[7]
Does shilajit improve sperm count?
One uncontrolled study reported changes; without a placebo, the effect is uncertain.[3]
Which shilajit does Best Shilajit UK recommend for men?
For a well-documented resin, Best Shilajit UK recommends Nature Elixirs, batch-tested by AGROLAB LUFA (batch SJ2509).[8] This is about documentation; the trials used a different extract. Nature Elixirs is a brand evaluated by Best Shilajit UK. Read our evaluation to see the evidence and documentation we reviewed.
Is shilajit safe for men to take daily?
Long-term data are limited. Use a batch-tested product and check with a GP if you take medicines.
Does shilajit help prostate health?
No research found.
Can young men benefit from shilajit?
The testosterone trial studied men aged 45–55; effects in younger men are unknown.
Is shilajit good for men over 50?
The testosterone trial included men aged 45–55; men over 55 weren’t studied. Check with a GP if you take medicines.
Does shilajit help with stamina in bed?
Not studied as an outcome. See libido and sexual function.
Does shilajit affect hair loss in men?
No research exists on shilajit and hair loss.
How long should men take shilajit before judging it?
Can shilajit help men with fatigue?
Not studied as an outcome. Persistent tiredness has many causes, including low iron and thyroid problems, which a GP can check.
Sources & further reading
Primary research, regulators and standards bodies are cited first. A source being listed here does not mean it supports every claim made by sellers; it supports the specific statement it is attached to.
- Pandit S, Biswas S, Jana U, De RK, Mukhopadhyay SC, Biswas TK. Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers. Andrologia 48(5):570–575, 2016. PMID 26395129. View source (opens in a new tab) [Randomised controlled trial]
- Keller JL, Housh TJ, Hill EC, Smith CM, Schmidt RJ, Johnson GO. The effects of Shilajit supplementation on fatigue-induced decreases in muscular strength and serum hydroxyproline levels. Journal of the International Society of Sports Nutrition 16:3, 2019. doi:10.1186/s12970-019-0270-2; PMID 30728074. View source (opens in a new tab) [Randomised controlled trial]
- Biswas TK, Pandit S, Mondal S, et al.. Clinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Andrologia 42(1):48–56, 2010. PMID 20078516. View source (opens in a new tab) [Uncontrolled clinical study]
- UK Anti-Doping (UKAD). Clean Sport Essentials pocket guide. ukad.org.uk, 2021. View source (opens in a new tab) [Anti-doping guidance]
- Quantifying of thallium in Shilajit and its supplements to unveil the potential risk of consumption of this popular traditional medicine. BMC Chemistry 19:20, 2025. doi:10.1186/s13065-025-01384-7. View source (opens in a new tab) [Laboratory analysis]
- EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA). Scientific Opinion on the substantiation of health claims related to zinc, including maintenance of normal serum testosterone concentrations (ID 301). EFSA Journal 8(10):1819, 2010. doi:10.2903/j.efsa.2010.1819. View source (opens in a new tab) [Scientific opinion]
- Medicines and Healthcare products Regulatory Agency. Borderline products: how to tell if your product is a medicine. GOV.UK. View source (opens in a new tab) [Regulator guidance]
- AGROLAB LUFA GmbH (published by Nature Elixirs). Test report, Himalayan Shilajit, batch SJ2509, sample 765188. natureelixirs.com, 2025. View source (opens in a new tab) [Brand-published laboratory report]