https://shilajit.uk/ An independent UK guide to shilajit: what it is, what the research shows, safety, dosage and buying, with every claim graded and cited. en-gb https://shilajit.uk/how-to-take-shilajit/best-time-to-take/ https://shilajit.uk/how-to-take-shilajit/best-time-to-take/ Fri, 16 Oct 2026 00:00:00 GMT No study has tested whether the time of day changes how well shilajit works. Five trials split the daily dose into two, and the two that described meals gave it with or after food. Taking it with food is a sensible default, and fixed times each day make it easier to remember. https://shilajit.uk/research/biswas-2010-sperm/ https://shilajit.uk/research/biswas-2010-sperm/ Fri, 16 Oct 2026 00:00:00 GMT In a study without a placebo group, 35 men with low sperm counts took 100 mg of processed shilajit twice a day for 90 days. Among the 28 who finished, total sperm count rose 61.4% and testosterone 23.5% from baseline. Without a comparison group, it can't show that shilajit caused the change. https://shilajit.uk/research/das-2016-muscle/ https://shilajit.uk/research/das-2016-muscle/ Fri, 16 Oct 2026 00:00:00 GMT In a 12-week study without a placebo group, overweight adults took 250 mg of PrimaVie shilajit twice a day, adding treadmill exercise for the last 4 weeks. After 8 weeks, muscle biopsies showed 17 genes linked to muscle structure and repair switched on. Blood sugar, cholesterol and muscle damage markers did not change. Natreon part-funded it. https://shilajit.uk/research/das-2019-skin/ https://shilajit.uk/research/das-2019-skin/ Fri, 16 Oct 2026 00:00:00 GMT In a randomised, placebo-controlled study, 45 healthy women aged 30 to 65 took 125 mg or 250 mg of PrimaVie shilajit twice a day, or placebo, for 14 weeks. The higher dose improved blood flow in the skin and switched on genes for blood vessel growth and collagen. Hydration and elasticity did not change. https://shilajit.uk/benefits/energy-and-fatigue/ https://shilajit.uk/benefits/energy-and-fatigue/ Fri, 16 Oct 2026 00:00:00 GMT Weakly, at best. The only human study measuring fatigue gave 25 men 500 mg of shilajit resin a day for 28 days and found fatigue scores fell by about a third, but it had no placebo group and was run by the manufacturer (Yadav et al., 2026). The rest of the evidence comes from rats. https://shilajit.uk/benefits/altitude-sickness/ https://shilajit.uk/benefits/altitude-sickness/ Fri, 16 Oct 2026 00:00:00 GMT There is no evidence that shilajit prevents or treats altitude sickness. We found no human or animal study testing it. The claim traces back to a 2010 opinion article that reviewed traditional uses but ran no experiments. The NHS advises ascending slowly, resting if symptoms start and going down if they get worse. https://shilajit.uk/benefits/cholesterol/ https://shilajit.uk/benefits/cholesterol/ Fri, 16 Oct 2026 00:00:00 GMT The evidence is weak and mixed. In a 2003 study of 30 healthy students, 2 g of shilajit a day for 45 days lowered total cholesterol from 145 to 125 mg/dL and triglycerides from 117 to 93 mg/dL. A 2016 US study found no change in blood lipids after 8 weeks at 500 mg a day. https://shilajit.uk/buying-guide/fake-shilajit/ https://shilajit.uk/buying-guide/fake-shilajit/ Fri, 16 Oct 2026 00:00:00 GMT You can't reliably tell fake or contaminated shilajit at home. Burn, water and stretch tests only show you have some kind of resin. What works is a certificate for your batch from an accredited lab, showing identity markers such as fulvic acid plus numbers for heavy metals and microbes, from a seller with a UK address. https://shilajit.uk/what-is-shilajit/fulvic-acid/ https://shilajit.uk/what-is-shilajit/fulvic-acid/ Fri, 16 Oct 2026 00:00:00 GMT Fulvic acid is a water-soluble humic substance formed as plants decay, and it is the main organic component of shilajit. Products studied in research have ranged from about 7% to 57% fulvic acid. Lab studies suggest anti-inflammatory and other effects, but no human trial has tested fulvic acid from shilajit on its own, so its role in people is unproven. https://shilajit.uk/what-is-shilajit/history/ https://shilajit.uk/what-is-shilajit/history/ Fri, 16 Oct 2026 00:00:00 GMT Shilajit has been used for centuries across Asia. Ayurveda classes it as a rasayana, or rejuvenator, and a review found it in 20 classical formulations. Persian medical texts from Rhazes onwards describe it as momiai, used especially for fractures and digestion. In Russia and Central Asia it is known as mumijo and was studied for bone healing. https://shilajit.uk/how-to-take-shilajit/how-long-to-take/ https://shilajit.uk/how-to-take-shilajit/how-long-to-take/ Fri, 16 Oct 2026 00:00:00 GMT Human trials ran from 28 days to 48 weeks, and most measured results after 8 to 12 weeks. The longest, in 60 postmenopausal women, found bone density differences at 24 and 48 weeks. We found no data on taking shilajit for longer than about a year, or on what happens after you stop. https://shilajit.uk/how-to-take-shilajit/ https://shilajit.uk/how-to-take-shilajit/ Fri, 16 Oct 2026 00:00:00 GMT Most human trials used 250 to 500 mg of purified shilajit a day, often split into two doses, for 8 to 12 weeks. A few studies used 1,000 mg a day, and one used 2,000 mg. Resin, capsules and powder can all deliver this; what matters most is a tested product and an accurately measured dose. https://shilajit.uk/buying-guide/uk-legal-status/ https://shilajit.uk/buying-guide/uk-legal-status/ Fri, 16 Oct 2026 00:00:00 GMT Shilajit is sold in the UK as a food supplement, but its legal position isn't fully settled: it is not on Great Britain's register of authorised novel foods, and the FSA hasn't published a ruling on whether it counts as novel. Sellers must follow food supplement rules and can't claim it treats or cures disease. https://shilajit.uk/safety/ https://shilajit.uk/safety/ Fri, 16 Oct 2026 00:00:00 GMT Purified shilajit at 200 to 1,000 mg a day was well tolerated in human trials lasting up to about three months, with no serious side effects reported. The main risk is contamination: raw or untested shilajit can contain lead, arsenic and mercury. Pregnant or breastfeeding women, children and people on medication should avoid it or ask a doctor first. https://shilajit.uk/research/keller-2019-strength/ https://shilajit.uk/research/keller-2019-strength/ Fri, 16 Oct 2026 00:00:00 GMT In a double-blind trial, 63 active young men took 250 mg or 500 mg of PrimaVie shilajit, or placebo, daily for 8 weeks. Shilajit did not make them stronger, but in the stronger half of men, 500 mg reduced strength loss during a fatiguing leg workout (8.9% vs 16.0% on placebo). The study was funded by Natreon. https://shilajit.uk/research/neltner-2024-collagen/ https://shilajit.uk/research/neltner-2024-collagen/ Fri, 16 Oct 2026 00:00:00 GMT In a randomised, placebo-controlled trial, 35 trained young men took 500 mg or 1,000 mg of shilajit, or placebo, daily for 8 weeks. Pro-c1α1, a blood marker of type 1 collagen production, roughly doubled on 500 mg and rose further on 1,000 mg, with no change on placebo. Skin, joints and tendons were not measured. https://shilajit.uk/research/pandit-2016-testosterone/ https://shilajit.uk/research/pandit-2016-testosterone/ Fri, 16 Oct 2026 00:00:00 GMT In a randomised, double-blind, placebo-controlled trial, healthy men aged 45 to 55 took 250 mg of purified shilajit twice a day for 90 days. Total testosterone, free testosterone and DHEA-S rose significantly compared with placebo, while LH and FSH stayed steady. It is one funded trial and has not been independently repeated. https://shilajit.uk/research/pingali-2022-bone-density/ https://shilajit.uk/research/pingali-2022-bone-density/ Fri, 16 Oct 2026 00:00:00 GMT In a 48-week randomised, double-blind trial, 60 postmenopausal women with osteopenia took 250 mg or 500 mg of shilajit extract, or placebo, daily. Bone density in the spine and hip fell on placebo, but fell significantly less on shilajit, more so at 500 mg. Fractures were not measured and the trial has not been repeated. https://shilajit.uk/buying-guide/raw-vs-purified/ https://shilajit.uk/buying-guide/raw-vs-purified/ Fri, 16 Oct 2026 00:00:00 GMT Purified shilajit is the better-studied choice: nearly every human trial used a processed or standardised extract, and no trial has tested raw shilajit. Purification typically means dissolving it in water, filtering and drying. But processing doesn't guarantee safety, so either form needs a batch lab test for heavy metals. https://shilajit.uk/research/sadeghi-2020-fracture-healing/ https://shilajit.uk/research/sadeghi-2020-fracture-healing/ Fri, 16 Oct 2026 00:00:00 GMT In a randomised, double-blind trial at three Tehran hospitals, 160 adults with a broken shin bone took two 500 mg capsules of momiai (shilajit) or placebo daily for 28 days after surgery. Average healing time was 129 days on shilajit and 153 days on placebo. Side effects were no more common than with placebo. https://shilajit.uk/research/sharma-2003-blood-chemistry/ https://shilajit.uk/research/sharma-2003-blood-chemistry/ Fri, 16 Oct 2026 00:00:00 GMT In a 2003 study, 30 healthy medical students aged 16 to 30 took either 2 g of purified shilajit a day (20 students) or sugar capsules (10) for 45 days. In the shilajit group, total cholesterol fell from 145 to 125 mg/dl and HDL rose slightly. Liver and kidney tests didn't change. Groups weren't compared statistically. https://shilajit.uk/benefits/bone-health/ https://shilajit.uk/benefits/bone-health/ Fri, 16 Oct 2026 00:00:00 GMT Two randomised, placebo-controlled trials are encouraging. In 60 postmenopausal women with osteopenia, 250 or 500 mg of shilajit extract daily for 48 weeks preserved bone density that fell on placebo. In 160 adults with a broken shin bone, 1,000 mg daily for 28 days cut healing time from 153 to 129 days. https://shilajit.uk/benefits/brain-health/ https://shilajit.uk/benefits/brain-health/ Fri, 16 Oct 2026 00:00:00 GMT The evidence is weak. Fulvic acid from shilajit stops tau protein clumping in the test tube, and rodent studies show effects on brain chemistry. The only human trial tested a blend of Andean shilajit and B vitamins in 82 people with Alzheimer's: apathy improved, but the blend makes it impossible to credit shilajit. https://shilajit.uk/benefits/fertility/ https://shilajit.uk/benefits/fertility/ Fri, 16 Oct 2026 00:00:00 GMT The evidence is weak. In the only human study, 28 men with low sperm counts took 100 mg of processed shilajit twice a day for 90 days and their total sperm count rose by 61% (Biswas et al., 2010). There was no placebo group, no pregnancies were reported, and no study has tested women. https://shilajit.uk/safety/heavy-metals/ https://shilajit.uk/safety/heavy-metals/ Fri, 16 Oct 2026 00:00:00 GMT Shilajit can contain lead, arsenic, mercury, cadmium and thallium from the rock it forms in. Some analyses found levels above safety limits, others found them below. One shilajit supplement tested by US regulators held 0.76 mg/kg of mercury, over seven times the GB legal maximum of 0.10 mg/kg for food supplements. https://shilajit.uk/benefits/testosterone/ https://shilajit.uk/benefits/testosterone/ Fri, 16 Oct 2026 00:00:00 GMT One randomised, placebo-controlled trial found that 250 mg of purified shilajit twice a day for 90 days raised total and free testosterone in healthy men aged 45 to 55 (Pandit et al., 2016). No independent team has repeated it, and no trial has tested younger men or shown whether men feel any different. https://shilajit.uk/benefits/ https://shilajit.uk/benefits/ Fri, 16 Oct 2026 00:00:00 GMT Shilajit is claimed to help with testosterone, fertility, energy, strength, bones and brain health. A handful of small human trials support a few of these, notably testosterone in middle-aged men and bone density in postmenopausal women, but none has been independently repeated. Many popular claims rest only on animal or lab studies. https://shilajit.uk/buying-guide/ https://shilajit.uk/buying-guide/ Fri, 16 Oct 2026 00:00:00 GMT Buy purified shilajit that comes with a recent certificate of analysis from an independent, accredited lab for the batch you're buying, with lead, cadmium, mercury and arsenic results within UK limits. Home tests such as burning it or dissolving it in water can't tell you whether shilajit is safe or pure. https://shilajit.uk/buying-guide/certificate-of-analysis/ https://shilajit.uk/buying-guide/certificate-of-analysis/ Fri, 16 Oct 2026 00:00:00 GMT A shilajit certificate of analysis should match your batch number, come from an ISO/IEC 17025 accredited lab, and give numbers for lead, cadmium, mercury and arsenic. In Great Britain, supplements must not exceed 3.0 mg/kg lead, 1.0 mg/kg cadmium and 0.10 mg/kg mercury. 1 mg/kg equals 1 ppm or 1,000 ppb. https://shilajit.uk/how-to-take-shilajit/dosage/ https://shilajit.uk/how-to-take-shilajit/dosage/ Fri, 16 Oct 2026 00:00:00 GMT Most human trials used 250 to 500 mg of purified shilajit a day, which is 0.25 to 0.5 g, usually split into two doses of 125 to 250 mg. 500 mg a day (250 mg twice a day) is the most studied dose. Trials went up to 1,000 mg a day, and no study shows that more than that adds any benefit. https://shilajit.uk/safety/drug-interactions/ https://shilajit.uk/safety/drug-interactions/ Fri, 16 Oct 2026 00:00:00 GMT No study in humans has tested whether shilajit interacts with any medicine, so nobody can say it is safe to combine with prescription drugs. Lab and animal studies suggest it could change how some drugs are absorbed and may affect blood sugar, potassium and hormones. If you take any regular medicine, ask your GP or pharmacist first. https://shilajit.uk/benefits/iron-and-anaemia/ https://shilajit.uk/benefits/iron-and-anaemia/ Fri, 16 Oct 2026 00:00:00 GMT There is no evidence that shilajit treats iron deficiency or anaemia. No study has tested it in anaemic people. The one human study that measured haemoglobin found no change after 45 days of 2 g a day in healthy students (Sharma et al., 2003). Iron deficiency anaemia is treated with iron tablets prescribed after a blood test. https://shilajit.uk/benefits/skin-and-collagen/ https://shilajit.uk/benefits/skin-and-collagen/ Fri, 16 Oct 2026 00:00:00 GMT The evidence is weak. One trial in 35 young men found 500 or 1,000 mg of shilajit a day for 8 weeks raised a blood marker of collagen production. A 14-week trial in 45 women found better skin blood flow at 250 mg twice daily, but no change in skin hydration or elasticity compared with placebo. https://shilajit.uk/benefits/exercise-performance/ https://shilajit.uk/benefits/exercise-performance/ Fri, 16 Oct 2026 00:00:00 GMT The evidence is weak. In a placebo-controlled trial of 63 young men, 500 mg of shilajit a day for 8 weeks helped muscles hold their strength during a fatiguing test, but only in the stronger half of the group (Keller et al., 2019). A 28-day study reporting bigger gains had no placebo group. https://shilajit.uk/safety/pregnancy-and-breastfeeding/ https://shilajit.uk/safety/pregnancy-and-breastfeeding/ Fri, 16 Oct 2026 00:00:00 GMT There are no studies of shilajit in pregnancy or breastfeeding, so its safety is unknown and it is best avoided. The only published case in pregnancy describes a woman who developed high blood pressure and low potassium after 6 months of mumijo. Contamination with lead, which can harm an unborn baby, is a further risk. https://shilajit.uk/how-to-take-shilajit/drinks-and-recipes/ https://shilajit.uk/how-to-take-shilajit/drinks-and-recipes/ Fri, 16 Oct 2026 00:00:00 GMT The simplest shilajit recipe is the one used in the only resin trial: 250 mg dissolved in about 200 ml of warm water, taken with a meal. You can also stir a weighed dose into tea, warm milk, a smoothie or coffee to soften the taste. No study has tested whether mixing it into food or drinks changes its effects. https://shilajit.uk/research/ https://shilajit.uk/research/ Fri, 16 Oct 2026 00:00:00 GMT About a dozen human studies have tested shilajit on its own, most with fewer than 100 people and lasting 8 to 12 weeks. The strongest are randomised, placebo-controlled trials on testosterone, bone density, fracture healing and muscle strength. None has been independently repeated, and many tested one branded extract. https://shilajit.uk/how-to-take-shilajit/resin-vs-capsules/ https://shilajit.uk/how-to-take-shilajit/resin-vs-capsules/ Fri, 16 Oct 2026 00:00:00 GMT No study has compared shilajit resin with capsules. Most trials used purified extract in capsules at 200 to 1,000 mg a day, and the only resin trial was a 28-day, 25-person study without a placebo. Capsules make an exact dose easy; resin needs scales to match trial doses. Either way, batch testing matters most. https://shilajit.uk/what-is-shilajit/resin/ https://shilajit.uk/what-is-shilajit/resin/ Fri, 16 Oct 2026 00:00:00 GMT Shilajit resin is shilajit sold as a thick, sticky paste rather than dried into capsules or powder. To take it, weigh 0.25 g (250 mg) on scales that read to 0.01 g and dissolve it in warm, not boiling, water. The only resin trial gave 250 mg twice a day in about 200 ml of warm water with meals. https://shilajit.uk/safety/side-effects/ https://shilajit.uk/safety/side-effects/ Fri, 16 Oct 2026 00:00:00 GMT In placebo-controlled trials of purified shilajit at 200 to 1,000 mg a day, side effects were no more common than with placebo. A 28-day open-label study of shilajit resin found mild, short-lived complaints such as acne, rash and indigestion in 7 of 25 men (28%). Rare case reports describe high blood pressure and an allergic reaction. https://shilajit.uk/safety/gout-and-uric-acid/ https://shilajit.uk/safety/gout-and-uric-acid/ Fri, 16 Oct 2026 00:00:00 GMT There is almost no research. The only human study that measured uric acid found no significant change after 45 days of 2 g of shilajit a day, in 20 healthy volunteers. No study has tested shilajit in people with gout. The clearest gout-related risk is lead contamination, because lead raises uric acid. https://shilajit.uk/what-is-shilajit/composition/ https://shilajit.uk/what-is-shilajit/composition/ Fri, 16 Oct 2026 00:00:00 GMT Shilajit is more than 80% humic substances by weight, mainly fulvic and humic acids, with about 20% minerals, chiefly calcium, potassium and magnesium. It also contains small amounts of amino acids, fatty acids, plant compounds such as dibenzo-alpha-pyrones, and trace metals, some of them toxic. The exact make-up varies widely between sources. https://shilajit.uk/what-is-shilajit/ https://shilajit.uk/what-is-shilajit/ Fri, 16 Oct 2026 00:00:00 GMT Shilajit is a sticky, dark brown to black resin that seeps from rock in high mountain ranges such as the Himalayas and Altai. Over 80% of it is humic substances, including fulvic acid, and most of the rest is minerals like calcium, potassium and magnesium. It has been used in Ayurvedic medicine for centuries. https://shilajit.uk/research/yadav-2026-resin/ https://shilajit.uk/research/yadav-2026-resin/ Fri, 16 Oct 2026 00:00:00 GMT In a 28-day open-label pilot with no placebo group, 25 healthy men took 500 mg a day of TruBlk shilajit resin. Leg press strength rose 12.9% and fatigue scores fell 32.4% from baseline, while testosterone did not change. Seven men reported mild side effects. Four of six authors work for the resin's maker.