Tongkat Ali for Enhanced Athletic Performance
Performance data are limited to small trials with mixed outcomes.
Overview
Verdict
How It Works
Dosing & Protocol
Typical dose
- Recommended dose
- Studied at 200-400 mg/day of standardised extract; performance benefits have not been demonstrated
- Expected timeframe
- Not established
Protocol
- form
- Water-based standardised extract such as Physta or LJ100; root powders and unstandardised products vary widely and heavy metal contamination is documented
- duration
- Trials ran 4-12 weeks
- co factor
- Evidence is insufficient. The rationale rests on tongkat ali modest effects on testosterone in hypogonadal or stressed men, plus a small number of exercise studies. Results are weak and inconsistent: an early study by Hamzah and Yusof reported increased lean mass and arm circumference in men doing resistance training, but it was small and poorly controlled, and subsequent trials in trained and older participants have generally found no meaningful improvement in strength, power, endurance or body composition versus placebo. Sample sizes are small, protocols vary, and several studies are industry-funded.
- titration
- Not applicable - no performance benefit has been established
- starting dose
- Not established for this outcome. Trials used 200-400 mg/day of water-based Eurycoma longifolia extract standardised to eurycomanone
Evidence
What the studies say
No studies are yet linked to both Tongkat Ali and Enhanced Athletic Performance.
Safety
Caveats
Performance supplements with real evidence are creatine monohydrate at 3-5 g/day, caffeine at 3-6 mg/kg, beta-alanine at 3-6 g/day for efforts of 1-4 minutes, and nitrate from beetroot juice for endurance - tongkat ali is not among them, and modest hormonal changes within the normal range do not produce measurable performance effects. Safety of tongkat ali: generally well tolerated in trials at 200-400 mg/day, with insomnia, restlessness and irritability reported. Contamination is a real concern - Malaysian surveys have found high lead levels in a substantial proportion of commercial tongkat ali products, so use only third-party tested standardised extracts. It may lower blood glucose, relevant in diabetes, and may affect blood pressure medication. Avoid in hormone-sensitive cancers including prostate and breast cancer, and in men with prostate disease. Avoid in pregnancy and breastfeeding. Long-term safety beyond a few months is not established. Competitive athletes should use third-party certified products, since testosterone-marketed supplements are a common source of contamination.
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Medical Disclaimer
The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.
Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.