Tongkat Ali increases testosterone levels in hypogonadal men | Meta-study
This website has reported several times about the hormonal effects of Tongkat Ali - scientific name: Eurycoma longifolia. When it comes to elevation of testosterone levels by herbal remedies, Tongkat Ali may be the most well-studied plant extract. A recently published meta-study strengthens us in this belief.
Kristian Leisegang, a researcher from the School of Natural Medicine in Cape Town, South Africa, and Renata Finelli, an embryologist from the British fertility clinic Create Fertility, published a meta-study in 2022 in which they combined and reanalyzed the results of 9 previously published trials. In these trials, men received 200-600 milligrams of Tongkat Ali extract daily for 3 days to half a year.
In 7 of the 9 trials, the researchers used the Tongkat Ali extract Physta. Physta is a product of the Malaysian Biotropics.
Details about the trials can be found in the table below. Click on it for a larger version.
Leisegang and Finelli were able to use 5 of the trials for a meta-analysis to determine the effect of supplementation on the testosterone concentration of the men. As the figure below shows, Tongkat Ali increased testosterone levels.
When the researchers broke down their data, the figures above emerged. These show that supplementation with Tongkat Ali significantly increases testosterone levels in hypogonadal men, but not in men with healthy testosterone levels.
"This systematic analysis of the literature highlights the possible use of Eurycoma longifolia supplementation for enhancing testosterone production", the researchers conclude.
"Although more research is required before its use in clinical practice, this may represent a safe and promising therapeutic option, particularly for patients with hypogonadism."
Medicina (Kaunas). 2022 Aug 4;58(8):1047.
About Tongkat Ali, working out, testosterone, and sex 26.03.2023
Men in their twenties produce more testosterone with 600 milligrams of Tongkat Ali per day 18.10.2021
Tongkat Ali boosts testosterone level and muscle strength in active over-fifties 09.09.2013
Less cortisol and more testosterone with a daily 200 mg Tongkat Ali 17.07.13