Eurycoma longifolia, commonly known as Tongkat Ali or Malaysian Ginseng, is a traditional herbal remedy long used for male vitality and energy. But how effective is it in actually increasing testosterone levels?
A 2022 systematic review and meta-analysis titled “Eurycoma longifolia (Jack) Improves Serum Total Testosterone in Men” provides strong scientific backing. This review, published in Evidence-Based Complementary and Alternative Medicine and indexed on PubMed Central (PMC9415500), analyzed the results of multiple clinical trials and concluded that Eurycoma longifolia significantly increases serum total testosterone levels in men.
What Was the Study About?
The researchers reviewed seven randomized controlled trials involving 232 men of various ages and health conditions. Their goal was to determine whether supplementation with Eurycoma longifolia had a measurable effect on testosterone levels.
Key Findings from the Meta-Analysis
- Statistically significant increase in total testosterone
Men who took Eurycoma longifolia showed a clear rise in serum testosterone compared to placebo groups. - Effectiveness across age groups
The testosterone-boosting effects were observed in both younger and older men, including those with hypogonadism (low testosterone). - Minimal side effects reported
Across studies, the herb was generally well tolerated, with few reports of adverse effects.
How Does Eurycoma Longifolia Work?
Eurycoma longifolia is believed to support testosterone production by:
- Stimulating the release of luteinizing hormone (LH), which signals the testes to produce more testosterone
- Reducing cortisol, a stress hormone that can suppress testosterone
- Improving free testosterone by reducing levels of sex hormone-binding globulin (SHBG)
Who Might Benefit?
According to the study and traditional use, Eurycoma longifolia may benefit:
- Men with low testosterone (due to age or medical conditions)
- Athletes and bodybuilders seeking hormonal balance
- Men experiencing reduced libido or fatigue
- Those looking for a natural supplement before considering hormone replacement therapy
Recommended Use and Precautions
Eurycoma longifolia is available in capsule, powder, or extract form. While doses vary between products, most clinical studies used 200–400 mg per day of standardized extract.
Note: Although side effects are rare, anyone with underlying health conditions or those taking other medications should consult a healthcare provider before starting.
Conclusion
The scientific evidence now backs what traditional medicine has claimed for centuries: Eurycoma longifolia can increase testosterone levels in men. The 2022 meta-analysis confirms its effectiveness and safety in a range of users.
If you’re looking for a natural way to support hormonal health, Eurycoma longifolia may be worth considering with growing research to support its use.
Reference:
Ismail, S. B., Wan Mohammad, W. M. Z., George, A., Nik Hussain, N. H., Musthapa Kamal, Z. M., Liske, E., & Tambi, M. I. B. M. (2022). Eurycoma longifolia (Jack) improves serum total testosterone in men: A systematic review and meta-analysis of clinical trials. Medicina, 58(8), 1047. https://doi.org/10.3390/medicina58081047
