Tongkat Ali (Eurycoma longifolia)
A Southeast Asian root traditionally used as a natural tonic, now widely taken to support testosterone, energy, and stress resilience.
Benefits
- +May support healthy testosterone levels, especially in older or stressed men
- +May improve energy, mood, and stress resilience (lowers cortisol)
- +May support libido and male fertility
- +May support muscle strength and body composition
- +Traditional adaptogenic tonic
Dosage & Cost
Use root extracts standardized to eurycomanone (often 2%). Studied range 100–600 mg/day. Cycling is sometimes recommended.
Side Effects
- !Generally well tolerated at standardized doses
- !Insomnia or restlessness if taken late in the day
- !Irritability in some users
- !Limited long-term safety data
- !Quality/purity varies; some products have had heavy-metal concerns
Food Sources
- • None — consumed only as a root extract or traditional decoction
References & Links
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This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.