From Ayurveda to modern laboratories, shilajit is being studied for its potential role in fertility . This article analyzes the scientific evidence, its limitations, and the practical implications for reproductive health.
1) What is shilajit and why is it relevant to fertility?
Shilajit is a natural mineral resin rich in fulvic acid , dibenzo-α-pyrones (DBPs) and more than 80 essential minerals. These components contribute to:
- Cellular energy production (ATP, mitochondria).
- Hormonal regulation (testosterone, estrogen, progesterone).
- Antioxidant protection , essential for the quality of gametes.
Note: Fertility depends on a complex synergy: hormonal balance, cellular integrity, gamete quality. Shilajit can act indirectly through these different levers.
2) Male fertility: energy, testosterone and sperm
2.1 Clinical study 2016
Randomized, double-blind, placebo-controlled trial (90 days, 75 men). Results: Significant increase in total and free testosterone . PubMed 26395129
2.2 Clinical study 2010
In oligospermic men: 100 mg twice daily for 90 days. Results: +61% sperm concentration , +12% motility , +23.5% testosterone . PubMed 20078516
Key point: Clinical data is more robust in men: improvement in testosterone and sperm quality .
3) Female fertility: cycles, vitality and hormones
A clinical study conducted in 2025 at the University of Karbala (Iraq) evaluated the impact of shilajit on sex hormones in men and women. The results show a significant increase in estrogen and progesterone levels in women, suggesting a possible role in regulating menstrual cycles and hormonal balance. In men, the study reports an improvement in testosterone , luteinizing hormone (LH) , and follicle-stimulating hormone (FSH) levels, confirming its potential interest in male vitality and fertility.
Caution: These data are preliminary . In women, the use of shilajit should be done with caution, especially in the case of planning a medically assisted pregnancy, pregnancy or breastfeeding.
4) Ayurvedic tradition
In Ayurveda , shilajit is classified as a rasayana , a substance that regenerates tissues, including reproductive tissues. It is traditionally combined with ashwagandha or safed musli to promote sexual vitality and fertility.
5) Modern testimonies
Some users report more regular cycles, increased libido , and enhanced vitality . These data remain anecdotal and do not replace evidence from clinical trials.
6) Practical use
Form : purified resin or standardized capsules.
Dosage : 250–500 mg/day.
Duration : 8–12 weeks in clinical trials.
Context : integration into a healthy lifestyle including diet, sleep and stress management.
Tip: Always choose a purified and certified shilajit, with a batch COA (Certificate of Analysis), attesting to the absence of heavy metals and contaminants.
7) Safety and EFSA recommendations
Raw shilajit may contain heavy metals (Pb, Hg, As) and mycotoxins. Never use it without purification. PubMed 15598918
In Europe, Regulation (EU) 2023/915 sets maximum contaminant thresholds. EFSA does not authorize any "fertility" health claims.
Important information: Not recommended during pregnancy/breastfeeding . Use should be accompanied by medical advice for any conception project.
8) FAQ
Clinical studies show potential support, especially in men (testosterone, sperm). In women, the evidence remains limited . It never replaces medical monitoring.
Clinical trials average 250–500 mg/day for about 3 months .
Generally well tolerated, but not recommended during pregnancy/breastfeeding . Seek medical advice before use.
Ashwagandha works mainly through stress and vitality , shilajit rather through minerals, hormones and mitochondria . They can be complementary.
Purified , standardized resin with recent COA . Ban raw shilajit or opaque powders without traceability.
9) Conclusion
Shilajit appears to be a potential fertility booster , particularly for men (testosterone and sperm). In women, data is emerging but remains preliminary . In any case, it is a wellness supplement and not a medical substitute. The key remains: purified product, supervised use, and integration into an overall lifestyle .
10) References
- Shilajit and testosterone levels: Andrologia , 2016. PMID: 26395129
- Shilajit and oligospermia in men: Andrologia , 2010. PMID: 20078516
- Heavy metals in Ayurvedic products: JAMA , 2004. PMID: 15598918
- Clinical study men and women Iraq, 2025 (testosterone, estrogen, progesterone) local source — University of Karbala .
- Regulatory framework: Regulation (EU) 2023/915
