Is it safe to take 250mg of shilajit (standardized to 20% fulvic acid) and 150mg of Tongkat ali (20:1 extract) root daily?

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Last updated: June 2, 2025View editorial policy

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From the Research

Taking 250mg of shilajit (standardized to 20% fulvic acid) and 150mg of Tongkat ali (20:1 extract) daily may be safe for most individuals, but it is crucial to consult with a healthcare provider, especially if you have pre-existing health conditions or take other medications. The safety and efficacy of shilajit have been well-documented in various studies, including a 2014 study published in Phytotherapy Research, which found that shilajit exhibits antioxidant, anti-inflammatory, adaptogenic, immunomodulatory, and anti-dyslipidemic properties 1. A more recent study published in 2019 in the Journal of the International Society of Sports Nutrition found that 8 weeks of Shilajit supplementation at 500 mg·d-1 promoted the retention of maximal muscular strength following a fatiguing protocol and decreased baseline hydroxyproline levels 2. Additionally, a 2016 study published in Andrologia found that purified Shilajit significantly increased total testosterone, free testosterone, and dehydroepiandrosterone (DHEAS) in healthy volunteers 3. Tongkat ali has also been shown to have beneficial effects on erectile function and testosterone levels, as demonstrated in a 2021 study published in Maturitas, which found that a 200 mg supplement of Eurycoma longifolia (Tongkat Ali) and concurrent training for 6 months significantly improved erectile function and increased total testosterone levels in men with androgen deficiency of aging males (ADAM) 4. However, it is essential to note that the combined use of shilajit and Tongkat ali lacks sufficient research, and individual results may vary. Some potential health benefits of taking these supplements include:

  • Improved muscular strength and endurance
  • Increased testosterone levels
  • Enhanced erectile function
  • Improved overall health and well-being However, potential health risks to consider include:
  • Interactions with medications, particularly those for diabetes, hypertension, or hormone-related conditions
  • Stress on the liver and kidneys
  • Digestive upset, headaches, sleep disturbances, or changes in mood or energy levels To minimize potential risks, it is recommended to:
  • Consult with a healthcare provider before starting this regimen
  • Start with lower doses to assess tolerance
  • Monitor for side effects and discontinue use if necessary
  • Regularly check blood pressure, blood sugar levels, and hormone levels to ensure safe use.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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