Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers.
Level 2 - randomized trial
Individual randomized, double-blind, placebo-controlled trial
PubMed 26395129 · doi:10.1111/and.12482
What was done
Healthy male volunteers aged 45 to 55 years participated in a randomized, double-blind, placebo-controlled clinical trial evaluating the effect of purified Shilajit on androgenic hormones. Participants received either purified Shilajit at a dose of 250 mg twice daily or placebo for 90 consecutive days. Total testosterone, free testosterone, dehydroepiandrosterone (DHEAS), luteinizing hormone (LH), and follicle-stimulating hormone (FSH) were evaluated.
What was found
Treatment with Shilajit for 90 days significantly increased total testosterone, free testosterone, and DHEAS compared with placebo (P < 0.05). Levels of gonadotropic hormones (LH and FSH) were maintained. No absolute numbers, baseline values, or effect sizes were reported in the abstract.
Why it matters
This study provides randomized controlled trial evidence suggesting that purified Shilajit may increase circulating androgen levels in healthy middle-aged men over a 90-day period without altering gonadotropin levels.
Limits
The abstract does not state the sample size (n), baseline hormone values, or effect magnitudes. The evaluation was limited to healthy men aged 45 to 55 years over a 90-day period, precluding conclusions about long-term safety, hypogonadal populations, or other demographic groups.
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