Shilajit is an ancient natural supplement that has been used for centuries in Ayurvedic medicine, but its effectiveness is no longer based solely on tradition. In recent years, numerous human clinical studies have validated its health effects, positioning it as one of the rare natural adaptogens with scientifically documented action.
Far from unverified marketing claims, this synthesis focuses only on the benefits of Shilajit proven by human clinical trials, including protocol, dosage, and measured results.
Each benefit presented below is supported by published human data to ensure reliable, practical, and credible information for anyone seeking real effectiveness.
Energy and Fatigue Reduction
Shilajit is known to increase energy and combat fatigue. Clinical trials suggest it may improve symptoms of chronic fatigue syndrome (CFS) and quality of life in patients with persistent fatigue.
In addition, an 8-week randomized double-blind trial (63 active men, 500 mg purified Shilajit daily) demonstrated improved muscle performance: the Shilajit group retained significantly more strength after fatiguing exercise compared to placebo.
These results indicate that Shilajit may act as an ergogenic agent by supporting ATP (cellular energy) production and mitochondrial function, leading to increased energy and reduced fatigue during physical effort.
Testosterone Increase
One of the most notable benefits of Shilajit is its effect on androgen hormones. A randomized, double-blind, placebo-controlled clinical trial evaluated purified Shilajit in healthy men aged 45–55 (250 mg twice daily for 90 days).
At the end of the study, Shilajit significantly increased total and free testosterone levels compared to placebo. DHEA-S levels also rose, while pituitary hormones (LH, FSH) remained stable.
This hormonally confirmed effect suggests Shilajit may support male vitality and reproductive health, especially in men experiencing age-related testosterone decline.
Cognitive Function and Brain Health
Active compounds in Shilajit, particularly fulvic acid, appear beneficial for cognition. Preliminary studies indicate Shilajit may improve cognitive function in older adults or individuals with mild cognitive impairment.
The proposed mechanism is inhibition of tau protein aggregation in the brain—Shilajit’s fulvic acid may prevent abnormal buildup of these proteins associated with Alzheimer’s disease. By improving synaptic function, Shilajit could support memory and attention.
Immune System Support
Shilajit exerts immunomodulatory effects due to its richness in nutrients and antioxidants. It contains more than 84 minerals and fulvic acid, giving it properties that may enhance immune response.
For example, it acts as an antioxidant protecting immune cells and may stimulate certain innate immune functions (pathogen phagocytosis, macrophage activity, etc.).
In a recent clinical trial, Shilajit supplementation was associated with improved immune markers (increased phagocytic activity, complement levels, and lysosomal enzymes) compared with placebo, suggesting strengthened natural defenses (preliminary results).
Anti-Inflammatory and Antioxidant Effects
Shilajit’s benefits include reducing systemic inflammation and oxidative stress, both linked to many chronic diseases.
A clinical study in postmenopausal women showed that daily supplementation (250–500 mg for 48 weeks) significantly reduced C-reactive protein (CRP), a key inflammation marker, compared with placebo.
At the same time, malondialdehyde (MDA), an indicator of oxidative stress, decreased in the Shilajit group, indicating improved neutralization of free radicals.
These antioxidant and anti-inflammatory effects have also been observed in other trials and are largely attributed to fulvic acid and humic compounds.
Bone Health and Osteoporosis
New research suggests Shilajit contributes to bone health. A randomized double-blind clinical trial followed 60 women with osteopenia. They received either placebo or purified Shilajit (250 mg or 500 mg daily) for 48 weeks.
Results showed dose-dependent preservation of bone mineral density (BMD) in Shilajit groups versus placebo, with the 500 mg group showing the greatest improvement.
Shilajit also reduced bone turnover markers (CTX-1, BALP, RANKL) and improved inflammatory and oxidative stress markers.
This 12-month clinical study confirms Shilajit may slow postmenopausal bone loss and help prevent osteoporosis.
High-Altitude Adaptation (Altitude Sickness)
Shilajit has traditionally been used by Himalayan populations to tolerate high altitude. A controlled clinical study validated this use: Shilajit reduced the incidence and severity of acute mountain sickness compared with placebo.
Participants receiving Shilajit experienced fewer headaches, nausea, dizziness, and fatigue during rapid ascent, suggesting improved physiological adaptation. Researchers attribute this effect to enhanced oxygen transport and utilization, along with anti-inflammatory properties.
Scientific Sources
The benefits listed above are supported exclusively by human clinical studies published in peer-reviewed scientific journals (PubMed, DOI). Each claim corresponds to a specific publication to ensure reliable and verified information, without relying on animal or in-vitro studies. This approach guarantees a high level of evidence regarding Shilajit’s effects in these health areas.