Synopsis

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

Tongkat ali (Eurycoma longifolia) has a long history of use in traditional Southeast Asian medicine, especially in Malaysia and Indonesia, where it is considered a tonic for enhancing male vitality and reproductive health. Its use to support the Glandular System—primarily referencing hormonal and reproductive glands—stems from these traditions. Folk practitioners have historically used tongkat ali to improve libido, stamina, and general well-being, often associating its effects with improved function of the testes and endocrine system.

Scientifically, there is a growing but still moderate body of evidence suggesting tongkat ali may influence hormones such as testosterone, particularly in men with low baseline levels. Several small-scale clinical studies have found that supplementation with tongkat ali extract can increase serum testosterone and improve sexual health parameters. However, most studies are relatively short in duration and limited in size, and the mechanisms by which tongkat ali acts on the glandular system are not fully elucidated. Its effects on other glands (e.g., adrenal, thyroid) are not well-documented in the scientific literature.

In summary, tongkat ali's use to support the glandular system is primarily justified by traditional practice, with some emerging but not definitive scientific support, especially related to male hormonal health. More rigorous, large-scale human trials are needed to fully validate its efficacy and safety for this use.

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