Shilajit (Mumijo)
Shilajit is a tar-like mineral pitch from Himalayan rocks, known for its potential to increase testosterone levels, improve sperm quality, and enhance mitochondrial function. It is commonly used as an adaptogen for male reproductive health and energy.
Evidence last reviewed: 20 Apr 2026
The evidence for Shilajit is moderate, showing benefits in testosterone levels, sperm quality, and mitochondrial function. While the studies are promising, they are limited in scope and sample size, necessitating further research to confirm these effects.
Testosterone levelsAdult males · RCTModerate
Shilajit supplementation was associated with a significant increase in total testosterone levels.
Sperm qualityInfertile men · RCTModerate
Improvement in sperm count and motility was observed in men taking Shilajit.
Mitochondrial functionHealthy adults · RCTModerate
Shilajit enhanced mitochondrial function and increased ATP levels.
CoQ10 efficacyAdults taking CoQ10 · RCTModerate
Shilajit enhanced the efficacy of CoQ10 supplementation, improving its absorption and effectiveness.
Forms & usage▾
Take 300-500 mg of Shilajit daily, preferably with meals.