Shilajit Dosage: How Much to Take (and How to Read the Label) 2026
Informational summary of published research — not medical advice. Shilajit's benefits are preliminary and unproven; talk to a clinician before starting.
The short answer
Take 250–500 mg a day of purified shilajit — the range used in the human trials — ideally split into two 250 mg doses, earlier in the day. Start at 250 mg once daily for a week, then build up. There's no established optimal dose and no official upper limit, so more isn't better. And with shilajit, which product you take matters more than the exact milligrams: an untested resin means an untested dose of whatever metals it carries.
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The dose the studies actually used
Two human trials anchor the dosing, and they agree on the range:
| Goal | Dose | Duration | Study |
|---|---|---|---|
| Testosterone (men 45–55) | 250 mg twice daily (500 mg) | 90 days | Pandit 2016 (PMID 26395129) |
| Exercise fatigue / strength | 500 mg/day (250 mg did nothing)* | 8 weeks | Keller 2019 (PMID 30728074) |
| General / starting dose | 250 mg once daily, titrate up | — | Practical, within the studied range |
*The fatigue result is narrower than it looks: in Keller's 3-arm trial, only the 500 mg dose helped, and only within a post-hoc subgroup with above-average baseline muscle damage — the 250 mg arm was no different from placebo. Note too what these studies did not test: doses above 500 mg/day, and any benefit in people under 45. The "more is better" instinct has no support here — 500 mg/day is the top of the evidence, not a floor.
Resin vs capsules: the dosing catch
Shilajit comes as sticky resin, powder, capsules, or gummies, and they are not equally easy to dose:
- Standardized capsules (e.g. PrimaVie) give you an exact milligram number per capsule — the only form where you truly know your dose.
- Resin is scooped by eye. A "pea-sized" amount is roughly 300–500 mg, and a "rice-grain" amount ~200 mg — but these are estimates. Dissolve it in warm (not boiling) water, and start small.
- Gummies often contain well under 100 mg of shilajit, buried in a blend of other ingredients — so the "dose" on the front rarely reflects how much shilajit you're getting. Treat them as a low-dose novelty.
This is why the studied 250–500 mg is easiest to hit with a standardized product. It's also why our picks lead with tested capsules — see the best-shilajit ranking.
Timing and how to take it
- Time of day: take it earlier in the day (morning or early afternoon). Shilajit is promoted for energy and its proposed mechanism involves cellular energy production, so a late dose could theoretically disturb sleep — a reasonable precaution, not a proven effect.
- With or without food: doesn't clearly matter; there's no strong evidence either way.
- Resin: dissolve it in warm (not boiling) water — boiling water can degrade the material.
- Cycling: there's no evidence you need to cycle shilajit on and off, and no established long-term dose. A sensible approach is to try it for the 8–12 weeks the trials ran, then judge whether it's doing anything for you before continuing.
The dose that matters most is purity
Here's the part generic dosage guides miss: with shilajit, a bigger dose of an untested product is a bigger dose of whatever heavy metals it contains. A 2025 study found thallium — more toxic than mercury — in some commercial shilajit supplements at levels higher than the raw resin (Kamgar 2025, PMID 39827344). So before you settle on milligrams, settle on a product with a batch certificate of analysis and a heavy-metal panel. Our purity guide shows exactly what to check.
Who should be cautious
- Hemochromatosis / iron overload: shilajit contains iron and fulvic acid may enhance mineral absorption — a theoretical precaution, not documented harm, but worth avoiding.
- Pregnancy or breastfeeding: avoid — there is no human safety data.
- On medication: there are no drug-interaction studies for shilajit, so clear it with your clinician first.
- Everyone: purified shilajit appears well tolerated short-term in small trials, but there is no long-term human safety data (Stohs 2014, PMID 23733436).
Frequently asked questions
How much shilajit should I take per day?
The human trials used 250–500 mg a day of purified shilajit. The testosterone study used 250 mg twice daily (500 mg total); the fatigue study's benefit appeared only at 500 mg/day. Start at 250 mg once daily for a week, then move to 250 mg twice daily if you tolerate it. There's no established optimal dose and no official upper limit, so more is not better — 500 mg/day is the top of the studied range.
How much is a pea-sized scoop of shilajit resin?
Roughly 300–500 mg — but resin is dosed by eye, so a "pea-sized" or "rice-grain" amount is an estimate, not a measurement. That imprecision is a real drawback: you can't know you're taking the studied 250–500 mg the way you can with a standardized capsule. Dissolve it in warm water and start on the smaller side.
When is the best time to take shilajit?
Earlier in the day, ideally not after mid-afternoon. Shilajit is marketed for energy and its proposed mechanism involves cellular energy production, so an evening dose could theoretically interfere with sleep — a sensible precaution rather than a proven effect. With or without food is fine.
Can you take too much shilajit?
Staying at or below the studied 500 mg/day of a purified, tested product is the safe play — there's no evidence higher doses do more, and shilajit has no established upper limit or long-term human safety data. The bigger risk is the source, not the amount: a large dose of an untested product means a larger dose of any heavy metals it contains, which is why buying a third-party-tested shilajit matters more than a higher milligram number.
Sources
- Pandit S, et al. Purified shilajit on testosterone in healthy volunteers. Andrologia. 2016. PMID 26395129
- Keller JL, et al. Shilajit and fatigue-induced strength loss. J Int Soc Sports Nutr. 2019. PMID 30728074
- Kamgar E, et al. Thallium in shilajit and its supplements. BMC Chem. 2025. PMID 39827344
- Stohs SJ. Safety and efficacy of shilajit. Phytother Res. 2014. PMID 23733436