Also known as Mumijo, Mineral pitch
Mineral-rich resin exuded from rock in high-altitude ranges including the Himalayas, containing fulvic acid and trace minerals; studied for testosterone support, fatigue, and as a nutrient-absorption enhancer.
Be careful if: pregnant, some medical situations
Suspect a side effect? Report it to the MHRA Yellow Card scheme ↗
We link to relevant studies and leave interpretation to you and your healthcare professional.
The large figures are what the studies reported for each thing they measured. Open a card for every result.
Colour keyReported a benefitNo clear benefitUnclearPossible harmAmber is for highlights, such as where the most research is. It never means a result was good.
5 of 5 results reported a benefit
1 study, 35 people · compared with the start of the study, not placebo
Also measured alongside: Count of normal sperm (reported a benefit); Sperm movement (motility) (reported a benefit); Total sperm count (reported a benefit); and 1 more.
Every resultWhat sources report about side effects, who should be careful, and medicines to ask about first.
| Reported effect | How often | Basis | Sources |
|---|---|---|---|
| In a 14-day animal toxicology study, shilajit samples caused no deaths or overt toxicity (single-dose LD50 above 2,000 mg/kg) but histopathology showed mild-to-moderate degenerative and necrotic changes in liver and kidney tissue; long-term human safety data are lacking | unknown | Listed by PubMed corpus rows (PubMed 42797531) | Rizun N, et al. Biogeochemical Evaluation of Shilajit: Testosterone-Modulating Effects, In Vivo Toxicity and Lipid Profile Analysis. Pharmaceuticals (Basel) 2026;19(9):1486 (PMID 42797531) |
| Applies to | What sources say | Sources |
|---|---|---|
| pregnant | A published case report describes pseudohyperaldosteronism (a licorice-like syndrome with raised blood pressure and low potassium) in a pregnant woman consuming mumijo (shilajit). Avoid in pregnancy pending better data. | Stavropoulos K, et al. Pseudohyperaldosteronism due to mumijo consumption during pregnancy: a licorice-like syndrome. Gynecol Endocrinol 2018;34(12):1019-1021 (PMID 29933704) |
| some medical situations | Product quality varies widely: a 2025 analytical study measured thallium at up to 0.5 micrograms per gram in shilajit supplements - in some products higher than in crude shilajit - and concluded regular monitoring and standardised testing are needed. Choose third-party-tested products. | Kamgar E, et al. Quantifying of thallium in Shilajit and its supplements to unveil the potential risk of consumption of this popular traditional medicine. BMC Chem 2025;19(1):20 (PMID 39827344) |
Stavropoulos K, et al. Pseudohyperaldosteronism due to mumijo consumption during pregnancy: a licorice-like syndrome. Gynecol Endocrinol 2018;34(12):1019-1021 (PMID 29933704)Pandit S, et al. Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers. Andrologia 2016;48(5):570-575 (PMID 26395129)Rizun N, et al. Biogeochemical Evaluation of Shilajit: Testosterone-Modulating Effects, In Vivo Toxicity and Lipid Profile Analysis. Pharmaceuticals (Basel) 2026;19(9):1486 (PMID 42797531)Kamgar E, et al. Quantifying of thallium in Shilajit and its supplements to unveil the potential risk of consumption of this popular traditional medicine. BMC Chem 2025;19(1):20 (PMID 39827344)
Audited published research for Shilajit by condition. Drill into a pair page for the full breakdown.
What this means: Bars count reported findings, not treatment effectiveness or certainty.
One study may report several findings or appear in more than one pairing. Counts do not show the size of an effect. Comparable numerical estimates are not established for this summary.
| Compound and condition | Findings (count) | Studies (count) | Reported results (finding counts) | How sure? |
|---|---|---|---|---|
| Testosterone Support | 5 | 1 | Benefit: 5; no benefit: 0; harm: 0; unclear: 0; not recorded / unrecognised: 0 | Not formally graded |
Where people report using it and what trials suggest
Common claims the trials do not support
Mineral resin sold on testosterone and energy claims; human data are few, small, and region-specific — with a heavy-metals contamination risk in unverified products.
Evidence grades reflect study quality and consistency, not marketing claims.
Ordered by strength of evidence, then result direction.
01A systematic review on sustainable utilization of plastic waste in asphalt: assessing environmental and health impact, performance, and economic viabilityMohammadi R, et al. · Environmental science and pollution research international · 2024PMID 39487917 ↗02The effects of Shilajit supplementation on fatigue-induced decreases in muscular strength and serum hydroxyproline levelsKeller JL, et al. · Journal of the International Society of Sports Nutrition · 2019PMID 30728074 ↗03Safety and Efficacy of TruBlk™ Shilajit Resin Supplementation on Physical Performance and Blood Biomarkers in Healthy Adults: A 28-Day Open-Label Pilot StudyYadav D, et al. · Cureus · 2026PMID 41613504 ↗04Reproductive development of yellow perch (Perca flavescens) exposed to oil sands-affected watersHeuvel MR, et al. · Environmental toxicology and chemistry · 2012PMID 22189895 ↗05Fathead minnow (Pimephales promelas) reproduction is impaired in aged oil sands process-affected watersKavanagh RJ, et al. · Aquatic toxicology (Amsterdam, Netherlands) · 2011PMID 20980067 ↗06Clinical evaluation of spermatogenic activity of processed Shilajit in oligospermiaBiswas TK, et al. · Andrologia · 2010PMID 20078516 ↗Reported results grouped by condition. Values and units are preserved as recorded; missing information is not estimated.
How to read this table
Reported direction, numerical results and study design are separate. Certainty has not been formally graded in this table.
| What was measured | Reported findings | Result and units | Reported sample and duration | Study / source |
|---|---|---|---|---|
| Normal sperm count | Shilajit increased normal sperm count by +18.9% compared to baseline; there was no control group. (P < 0.001)Benefit seen | +18.9% change Recorded unit: Not reported | Sample (as reported): 35 Follow-up: 90 days | Study · 2010 Study detailsClinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Clinical Trial |
| Semen malondialdehyde | Shilajit reduced semen malondialdehyde by -18.7% compared to baseline.Benefit seen | -18.7% change Recorded unit: Not reported | Sample (as reported): 35 Follow-up: 90 days | Study · 2010 Study detailsClinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Clinical Trial |
| Serum testosterone | Shilajit increased serum testosterone by +23.5% compared to baseline. (P < 0.001)Benefit seen | +23.5% change Recorded unit: Not reported | Sample (as reported): 35 Follow-up: 90 days | Study · 2010 Study detailsClinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Clinical Trial |
| Sperm motility | Shilajit improved sperm motility by 12.4-17.4% compared to baseline; there was no control group. (P < 0.001)Benefit seen | 12.4-17.4% improvement Recorded unit: Not reported | Sample (as reported): 35 Follow-up: 90 days | Study · 2010 Study detailsClinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Clinical Trial |
| Total sperm count | Shilajit increased total sperm count by +61.4% compared to baseline in men completing treatment; there was no control group. (P < 0.001)Benefit seen | +61.4% change Recorded unit: Not reported | Sample (as reported): 35 Follow-up: 90 days | Study · 2010 Study detailsClinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Clinical Trial |
Associated conditions and community-reported outcomes, wrapped together on one page. Aggregates appear only once enough reports arrive.
How this compound is sold in the UK, and where our readers typically find it.
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