Shilajit and altitude sickness

Evidence at a glance

Where the altitude idea comes from

Shilajit is collected in high mountains, and people living in the Himalayas have used it traditionally, so a link with altitude feels natural. The most cited paper is a 2010 review in the International Journal of Ayurveda Research by researchers at a DRDO field station in the Himalayas. It describes high-altitude problems, including acute mountain sickness, poor sleep, fatigue and loss of appetite, and proposes shilajit as a supplement for people ascending to altitude.^[1] It is a review and proposal, not a trial.

What the evidence shows

The review’s mechanisms, such as fulvic acid carrying nutrients into tissues, are themselves unproven in people; see the “carrier” claim.

Why this matters: altitude sickness can be dangerous

Acute mountain sickness can progress to high-altitude pulmonary or cerebral oedema, which can be life-threatening; the 2010 review itself describes these risks.^[1] Established prevention focuses on ascending gradually, allowing time to acclimatise, recognising symptoms early, and descending if they worsen. Prescription medicines exist for prevention in some situations. A supplement with no human evidence shouldn’t change any of that.

If you are planning a high-altitude trip

1. Speak to a GP or travel clinicBefore you go, especially if you have a health condition.
2. Plan a gradual ascentWith rest days built in.
3. Learn the warning signsHeadache, nausea, breathlessness at rest, confusion.
4. Don’t rely on supplementsNo supplement has been shown to replace acclimatisation.

If you take shilajit while travelling

Some trekkers take shilajit out of habit or tradition. If you do, treat it as you would at home: a batch-tested product, a measured serving, and no change to your acclimatisation plan. Capsules travel more easily than resin; see storage and travel. Stop and seek advice if you feel unwell; see when to stop shilajit.

Altitude claims and UK rules

Claims that shilajit prevents or treats altitude sickness would be medicinal claims, which food supplements can’t make.^[2] Even softer wording such as “supports adaptation to altitude” is a health claim that would need authorisation.^[3][4]

Why a trial would be needed

Altitude illness varies a great deal between people and between trips, depending on how fast someone climbs, how high they sleep and their own susceptibility. That variability makes personal stories unreliable: a trekker who took shilajit and felt fine may simply have ascended slowly. Only a controlled trial, comparing shilajit with placebo under the same ascent conditions, could show whether it helps. Until one exists, the honest position is that the idea is untested; see why one story or study isn’t proof.

What about people who live at altitude?

Some Himalayan communities have used shilajit traditionally. People who live permanently at altitude are also physiologically adapted to it over long periods, which is a separate effect from any supplement. Traditional use there tells us shilajit was valued, not that it prevents altitude illness in visitors; see tradition vs clinical evidence.

Questions to ask before relying on any altitude product

Ask whether the claim is based on a human trial, whether the trial used the same product and dose, and whether it measured altitude sickness itself. For shilajit, the answer to the first question is no.

The bottom line

The altitude link is a plausible story with no human trials behind it. Shilajit’s mountain origin doesn’t mean it protects against mountain illness. Plan your ascent carefully, get medical advice before travelling, and treat any shilajit you take as unrelated to your safety at altitude.

Related reading