Shilajit supplements: benefits, risks, and quality checks

The primary clinical evidence supporting shilajit for male hormone health comes from a randomized, double-blind, placebo-controlled trial published in Andrologia. Researchers administered 250 mg twice daily (500 mg total) of purified shilajit extract (PrimaVie) to 75 healthy men aged 45 to 55 for 90 consecutive days. Total testosterone increased by 20.45 percent and free testosterone rose by 19.14 percent compared to placebo. Pandit et al. 2016 clinical trial of purified shilajit on testosterone in Andrologia FDA supplement claim substantiation guidance

Importantly, the men in this trial had normal baseline testosterone. The study demonstrated support for endocrine homeostasis within normal physiological ranges. It did not evaluate men with clinical hypogonadism, erectile dysfunction, or endocrine disease. Marketing shilajit as natural testosterone replacement therapy overstates the published data. Pandit et al. 2016 clinical trial of purified shilajit on testosterone in Andrologia FTC health products compliance guidance

Exercise performance research shows similar dose dependence. In a double-blind trial published in the Journal of the International Society of Sports Nutrition, 500 mg daily of purified shilajit significantly reduced fatigue-induced strength loss during maximal voluntary contractions across 8 weeks, while reducing collagen degradation markers. A 250 mg daily dose was ineffective. Keller et al. 2019 clinical trial of shilajit on muscular strength in JISSN USADA Supplement Connect

Raw shilajit is not an herb. It is a geologic exudate collected from rocky cliff crevices in high-altitude mountain ranges. In nature, it binds heavy metals directly from surrounding rock strata. Health Canada has issued multiple public warnings and product seizures after testing unpurified Ayurvedic shilajit products and discovering lead levels exceeding safety thresholds by up to 100-fold. Health Canada safety warning on heavy metals in Ayurvedic products Shilajit composition and quality review

Traditional processing uses water extraction and filtration (shodhana), but modern safety requires standardized aqueous extraction and multi-stage filtration to eliminate insoluble rock matter, polymeric quinones, free radicals, and fungal mycotoxins. Finished supplements must be tested by independent ISO-accredited laboratories using inductively coupled plasma mass spectrometry (ICP-MS). Shilajit composition and quality review USADA Supplement Connect

Acceptable limits for elemental impurities require lead below 0.5 parts per million (ppm), arsenic below 1.5 ppm, cadmium below 0.5 ppm, and mercury below 0.2 ppm. A product lacking a batch-specific COA with these exact numbers presents unacceptable heavy-metal accumulation risks. Shilajit composition and quality review FDA dietary supplement labeling guide

Evaluating a shilajit product requires examining its extraction method, standardization markers, and heavy-metal screening. The following table contrasts standardized purified extracts, traditional resin jars, crude raw pitch, and diluted commercial blends on active compounds, processing standards, and consumer safety. Shilajit composition and quality review FDA dietary supplement labeling guide

Beyond heavy metals, shilajit possesses specific biological properties that require medical caution. Shilajit contains substantial amounts of bioavailable iron and humic-bound minerals. Supplementation is strictly contraindicated in individuals with hemochromatosis, hemosiderosis, or other iron overload disorders. Shilajit composition and quality review FDA 101 dietary supplements

Shilajit has also been documented to alter uric acid excretion. While some research notes uric acid reductions in healthy volunteers, individuals with active gout or uric acid kidney stones should avoid shilajit due to potential flare-ups during metabolic clearance. Shilajit composition and quality review FTC health products compliance guidance

Shilajit has not been evaluated for safety in pregnant or nursing individuals or pediatric populations, and its use is contraindicated in those groups. Because of its potential to influence blood glucose and blood pressure, individuals on diabetes or hypertension medications must consult a healthcare provider. FDA 101 dietary supplements FTC health products compliance guidance

An honest shilajit label states the exact geographical origin (such as Himalayan or Altai), the extraction solvent (water-only), and the guaranteed standardization percentage for fulvic acid. High-quality products declare 500 mg per daily serving to match the published clinical literature. Pandit et al. 2016 clinical trial of purified shilajit on testosterone in Andrologia FDA dietary supplement labeling guide

The label must avoid proprietary blends that lump shilajit with ashwagandha, tribulus, or cordyceps without disclosing individual milligrams. Most importantly, reputable brands publish easily accessible, third-party laboratory test results verifying that lead, arsenic, cadmium, and mercury levels comply with strict safety standards. USADA Supplement Connect FDA dietary supplement labeling guide

• Clinically significant dose guide
• Proprietary blend red flag guide
• Clean label transparency guide
• COA heavy metals interpreter tool
• NutriScore scoring methodology