Tongkat Ali (Eurycoma Longifolia) for Energy And Fatigue

Research suggests that Tongkat Ali may offer some benefits related to energy and fatigue, primarily through its apparent effects on stress hormones, mood, and sleep-wake regulation. A small randomized, placebo-controlled trial found that a standardized extract reduced salivary cortisol and improved self-reported mood measures including tension and confusion in moderately stressed adults, effects that could plausibly translate to reduced fatigue, though the study was short-term and limited in size. A separate animal study found that Tongkat Ali helped consolidate wakefulness during active periods and deepened restorative sleep afterward in healthy mice, suggesting a possible role in supporting natural energy rhythms, though these findings in mice may not translate directly to humans. A registered clinical trial examining fatigue and well-being outcomes in perimenopausal women has not yet published results, leaving important questions about broader applicability unanswered. Overall, the existing human evidence is preliminary and limited, and further well-powered trials are needed before firm conclusions can be drawn.