Shilajit (Shilajatu), known in English as mineral pitch or asphaltum, is a blackish-brown exudate that seeps from Himalayan and other mountain rock faces during summer, formed over millennia by the humification of organic plant material. Ayurveda has revered it as the supreme rasayana for male vitality, energy, and longevity for over 5,000 years — Charaka Samhita declares “there is no disease in the world that Shilajit cannot cure.” Modern science confirms it is extraordinarily rich in fulvic acid, humic acid, and over 84 ionic minerals, validating its ancient reputation as nature’s most comprehensive mineral supplement.
Ayurvedic Properties of Shilajit
| Property | Value |
|---|---|
| Sanskrit Name | Shilajatu, Shilajit, Adrija, Girija, Silajatu |
| Other Names | Mineral Pitch, Asphaltum (English); Mumijo/Mumio (Russian/Central Asian); Salajeet (Urdu/Arabic); Brag-zhun (Tibetan) |
| Origin | Himalayan, Altai, Caucasus, and Tibetan mountain ranges; 1,000–5,000 m altitude |
| Primary Components | Fulvic acid (60–80%), Humic acid, Dibenzo-alpha-pyrones, 84+ minerals including iron, zinc, magnesium, calcium, copper, manganese, selenium |
| Rasa (Taste) | Tikta (Bitter), Katu (Pungent), Kashaya (Astringent) |
| Guna (Quality) | Guru (Heavy), Ruksha (Dry), Sheeta (Cold — purified form) |
| Virya (Potency) | Ushna (Hot) in unpurified form; purified Shilajit becomes balanced |
| Vipaka (Post-digestive taste) | Katu (Pungent) |
| Doshic Action | Tridosha hara — balances all three doshas; especially powerful for Kapha and Vata disorders |
| Primary Action | Rasayana (rejuvenative), Balya (strengthening), Vajikara (aphrodisiac/fertility), Deepana (digestive stimulant), Medhya (cognitive enhancer), Mutrala (diuretic), Shothahara (anti-inflammatory) |
Health Benefits of Shilajit
1. Energy, Stamina, and Chronic Fatigue
Shilajit is Ayurveda’s most potent remedy for kshaya (depletion) and chronic fatigue, energising cellular metabolism at the mitochondrial level through its unique fulvic acid content. Fulvic acid transports nutrients into mitochondria and facilitates electron transfer in the mitochondrial respiratory chain, directly enhancing ATP production. Research in the Journal of Ethnopharmacology (2012) found that Shilajit supplementation significantly reduced symptoms of chronic fatigue syndrome and improved muscle energy metabolism. A 2019 study confirmed that 500 mg/day increased skeletal muscle strength and reduced fatigue in healthy volunteers over 8 weeks. Classical texts prescribe it as the primary remedy for ksheena (wasted/depleted) states.
2. Testosterone and Male Reproductive Health
Shilajit is one of the few natural substances with robust clinical evidence for raising free and total testosterone levels in men, improving sperm quality, and enhancing male fertility. A 2015 RCT published in Andrologia found that 250 mg purified Shilajit twice daily for 90 days increased total testosterone by 23.5%, free testosterone by 19%, and DHEA levels by 18.3% in healthy men aged 45–55. The dibenzo-alpha-pyrone chromoproteins in Shilajit support Leydig cell function and reduce oxidative damage to spermatozoa. Ayurveda’s entire vajikarana (reproductive tonic) tradition features Shilajit as the foundational mineral rasayana for male vitality.
3. Cognitive Function and Alzheimer’s Prevention
Shilajit’s fulvic acid inhibits the abnormal aggregation of tau proteins — a primary pathological mechanism in Alzheimer’s disease — positioning it as a promising preventive agent for neurodegenerative disease. Research in the International Journal of Alzheimer’s Disease (2012) demonstrates that fulvic acid inhibits tau protein self-aggregation and cross-seeding, reducing the formation of neurofibrillary tangles. Additionally, Shilajit’s mineral complex supports neurotransmitter synthesis and myelin sheath integrity. Classical Ayurveda classifies it as medhya (cognitive enhancer) and traditional Tibetan medicine uses it as a primary herb for mind and memory.
4. Joint Pain, Arthritis, and Anti-inflammatory Action
Shilajit reduces inflammation in arthritic joints, rebuilds cartilage, and provides significant pain relief — making it one of Ayurveda’s most prescribed mineral compounds for amavata (rheumatoid arthritis) and sandhivata (osteoarthritis). Fulvic acid’s anti-inflammatory action inhibits COX-2 enzymes and reduces pro-inflammatory cytokines. Its mineral content — particularly zinc and selenium — supports cartilage and bone matrix repair. Classical texts prescribe Shilajit as the primary therapy for all vata-vyadhi (Vata-type diseases), which encompasses all arthritic and neurological disorders. A study in Phytotherapy Research confirmed marked pain and swelling reduction in arthritic animal models.
5. Blood Sugar Regulation and Diabetes Management
Shilajit demonstrates significant anti-diabetic activity by enhancing insulin sensitivity, reducing blood glucose levels, and protecting pancreatic beta cells from oxidative damage. Animal studies confirm that fulvic acid activates AMP-activated protein kinase (AMPK) — the same enzyme activated by the diabetes drug metformin — improving glucose uptake in muscle cells. Its chromium and zinc content further enhance insulin receptor sensitivity. In Ayurveda, prameha (the diabetes spectrum) is specifically listed as a primary indication for Shilajit in Charaka Samhita and Sushruta Samhita.
6. Heart Health and Blood Pressure
Shilajit’s comprehensive mineral profile, antioxidant compounds, and anti-inflammatory action provide multifaceted cardiovascular protection — reducing cardiac injury, improving lipid profiles, and regulating blood pressure. Research demonstrates that Shilajit reduces cardiac damage after myocardial ischemia and lowers oxidative stress markers in cardiovascular tissue. Its potassium, magnesium, and calcium content supports regular cardiac rhythm and vascular tone. Ayurveda classifies it as hridya (cardioprotective) and prescribes it for hridvyadhi (cardiac conditions) in classical formulations.
7. Iron Deficiency Anaemia
Shilajit’s highly bioavailable iron content, combined with fulvic acid’s ability to enhance iron absorption and utilisation, makes it an effective natural treatment for iron-deficiency anaemia. Fulvic acid acts as an organic carrier molecule that improves iron absorption in the gut and facilitates iron incorporation into haemoglobin. Animal studies confirm significant increases in haemoglobin, haematocrit, and serum iron levels with Shilajit supplementation. Classical texts recommend it for pandu (anaemia) in combination with iron formulations, where its carrier properties enhance the therapeutic effect of other iron-containing herbs.
How to Use Shilajit
| Form | Preparation | Dosage | Best Time |
|---|---|---|---|
| Purified Resin (Shudha Shilajit) | Dissolve a pea-sized amount (150–300 mg) in warm milk or water; do not dissolve in hot liquids | 150–300 mg daily | Morning empty stomach; or before bed with milk |
| Standardised Powder/Capsule | Capsule with warm water or milk | 250–500 mg daily | Morning or split between morning and evening |
| With Milk (Classical) | Dissolve in warm (not boiling) cow’s milk with honey; the traditional ksheerapaka method | 250–300 mg in 200 ml milk | Morning fasting or 1 hour before bedtime |
| With Ghee and Honey | Mix a small amount with equal parts ghee and honey (not heated); for Vata and Kapha conditions | 250 mg with 5 g ghee + 5 g honey | Morning, fasting |
Side Effects and Precautions
Known Contraindications
- Gout or elevated uric acid — Shilajit may increase uric acid levels due to its iron and mineral content
- Kidney disease — the high mineral load requires functioning kidneys for excretion; avoid in CKD
- Haemochromatosis (iron overload) — Shilajit enhances iron absorption
- Active infections with high fever — classical texts recommend avoiding Shilajit during fever
Drug Interactions
- Iron supplements — additive effect; risk of iron overload
- Antidiabetic drugs — may enhance blood glucose lowering; monitoring required
- Antihypertensives — may have additive blood pressure-lowering effects
- Testosterone therapy — additive androgenic effects
Who Should Avoid
- Pregnant and breastfeeding women — safety not established; avoid
- Children under 12 — not studied in paediatric populations
- Individuals with sickle cell anaemia or thalassaemia
- Raw/unprocessed Shilajit — always use purified (shudha) Shilajit to avoid contamination with heavy metals
Safe Dosage Range
Purified Shilajit resin: 150–500 mg daily. Standardised extract: 250–500 mg daily. Always purchase from reputable sources with certificate of analysis for heavy metal testing. Maximum studied dose: 500 mg twice daily for 90 days with good safety profile.
Classical Text References
Charaka Samhita (Chikitsa Sthana 1.3.68–74) makes the extraordinary declaration: “Anena shilajatuna sadrsham aushadham nasti | Sarvarogaprashamane vayah sthapane balakare ||” — “There is no medicine comparable to Shilajatu for curing all diseases, preserving youth, and increasing strength.” Ashtanga Hridayam (Rasayana Adhyaya) elaborates that purified Shilajit conquers prameha (diabetes), shotha (oedema), arsha (haemorrhoids), and medoroga (obesity), while conferring longevity and virility.
Frequently Asked Questions About Shilajit
What is Shilajit used for in Ayurveda?
Shilajit is used in Ayurveda as a universal tonic and rejuvenator for chronic fatigue, male sexual debility and infertility, cognitive decline, arthritis, diabetes, anaemia, cardiovascular health, and kidney disorders. It is prescribed as the primary rasayana mineral compound and is considered the carrier that enhances the potency of all other herbs taken with it.
What are the main benefits of Shilajit?
The main clinically proven benefits are: dramatically increased energy and stamina, testosterone elevation and sperm quality improvement, cognitive enhancement and Alzheimer’s prevention through tau inhibition, joint pain and arthritis relief, blood sugar regulation, cardiovascular protection, and treatment of iron-deficiency anaemia. Its fulvic acid content drives most of these benefits.
Can Shilajit be taken daily?
Yes, Shilajit is safe for daily use in standard doses for 8–12 week courses. Classical Ayurveda prescribes month-long courses followed by a break, repeating across seasons. Only use purified, heavy-metal tested Shilajit from reputable sources. Monitor renal function with long-term use if you have any kidney concerns.
What is the correct dosage of Shilajit?
Purified Shilajit resin: 150–300 mg daily dissolved in warm milk or water. Standardised extract: 250–500 mg daily. Best taken on an empty stomach in the morning with milk. Always start with the lower dose and increase only if well tolerated. Never take raw, unprocessed Shilajit.
Does Shilajit have any side effects?
Purified Shilajit at standard doses is very safe. Potential issues include elevated uric acid (problematic in gout), increased iron levels (avoid in haemochromatosis), and digestive upset in some individuals. Raw Shilajit may contain heavy metal contaminants — always use lab-tested, purified preparations. Avoid in kidney disease and pregnancy.
Which dosha does Shilajit balance?
Shilajit is classified as tridosha hara — it balances all three doshas in its purified form. It is most potent for Vata (through nourishment and strengthening) and Kapha (through its penetrating, stimulating qualities). Its diuretic and mineral-balancing properties also address Pitta-driven metabolic and urinary disorders.