Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Tongkat ali (Eurycoma longifolia) is increasingly used as an athletic and exercise aid, and there is moderate scientific evidence to support its efficacy in this area. Several clinical studies and reviews suggest that tongkat ali may help improve muscle strength, body composition, and endurance, particularly in men. The proposed mechanisms include increased testosterone production, reduced cortisol levels, and improved energy metabolism. For example, a randomized, placebo-controlled trial published in the “British Journal of Sports Medicine” (2003) found that supplementation with tongkat ali extract led to significant increases in muscle strength and size among men participating in an intensive strength training program. Other studies indicate potential benefits in reducing fatigue and improving mood, which could indirectly support athletic performance.

However, while these findings are promising, the overall quality of evidence is limited by small sample sizes, short study durations, and occasional conflicts in results. Most research focuses on men, leaving gaps regarding effects in women or elite athletes. There is a tradition of tongkat ali use in Southeast Asian herbal medicine for vitality and energy, but the modern application for athletic performance is rooted in recent scientific investigation rather than ancient practice.

In summary, tongkat ali demonstrates moderate scientific support as an athletic and exercise aid, but more rigorous, large-scale studies are needed to confirm its effectiveness and safety for this use.

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