Ingredient guide

Shilajit: Testosterone, Energy Claims, and Safety

Shilajit is a tar-like substance from mountain rocks, rich in fulvic acid and minerals. Small studies hint at effects on testosterone and energy, but high-quality human research is scarce and contamination is a real concern with unpurified products.

Limited evidence

Benefits

  • One small study linked purified shilajit with higher testosterone in men over 90 days.
  • Early trials suggest possible help with energy, fatigue, and muscle strength.
  • Supplies fulvic acid and a wide range of minerals.
  • Studied in laboratory work for antioxidant and cell-energy effects.

Evidence summary

What shilajit is

Shilajit is a sticky, tar-like material that seeps from rocks in mountain ranges like the Himalayas, formed over centuries from slowly broken-down plant matter. Its main active components are fulvic acid and a long list of minerals. As a supplement it comes as a resin or a powder.

How shilajit is thought to work

The interest centres on fulvic acid and related compounds, which show antioxidant activity and may support how cells make energy. In animal work, purified shilajit has been linked with better mitochondrial function, the part of the cell that produces energy. Whether that carries through to people is the open question.

What the human research shows

The human evidence is thin but interesting. One study of men taking 200 mg of purified shilajit daily for 90 days reported a rise in testosterone of around 23 percent, and a few small trials suggest possible help with fatigue and muscle strength. These are early signals, not proof.

Two cautions matter. First, high-quality human research is scarce, so the benefits are far from settled. Second, raw shilajit can contain heavy metals and contaminants, which makes purity essential. We grade the evidence as limited. The safest version of shilajit is a tested, purified product used with a clinician's awareness.

What we still do not know

  • Whether the testosterone and energy signals hold up in larger trials.
  • The best dose and which purified form works.
  • The long-term safety of regular use.

How people take shilajit

Studies use around 200 mg to 500 mg of purified shilajit per day. The single most important step is choosing a product that is purified and third-party tested for heavy metals, because raw shilajit can be unsafe. Check with your healthcare provider before use, especially if you have any condition affecting iron.

Dosage & safety

Dosage

Human studies have used around 200 mg to 500 mg of purified shilajit per day for up to 90 days. There is no established dose. Purity matters greatly, since raw shilajit can contain heavy metals. Choose tested products and ask your healthcare provider before use.

Side effects

  • Purified shilajit appears well tolerated in short studies.
  • Unpurified products can contain heavy metals and contaminants.
  • Some people report mild digestive upset.

Interactions

  • Shilajit may affect iron levels, so it can interact with iron-related conditions or medicines.
  • Data on drug interactions is very limited, so review it with your provider.

Warnings

  • Speak with a doctor before using shilajit, and choose only products tested for heavy metals and contaminants.
  • Avoid raw or unprocessed shilajit, which can be unsafe.
  • Avoid it in pregnancy and if you have a condition affecting iron levels, unless a provider approves.

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Citations

  1. Shilajit: benefits, side effects, and more healthline.com
  2. Shilajit benefits, dosage, and side effects examine.com
  3. Shilajit: a natural phytocomplex with potential procognitive activity pmc.ncbi.nlm.nih.gov

Frequently asked questions

Does shilajit raise testosterone?

One small study of purified shilajit reported about a 23 percent rise in testosterone in men over 90 days. The evidence is early and limited, not proven.

Is shilajit safe?

Purified, tested shilajit appears well tolerated in short studies. Raw or unprocessed shilajit can contain heavy metals, so purity is essential.

How much shilajit should I take?

Human studies use around 200 to 500 mg of purified shilajit per day. There is no established optimal dose.

What is fulvic acid?

Fulvic acid is the main active component of shilajit, a plant-derived compound with antioxidant activity studied for its effects on cell energy.