Tongkat ali, or longjack, is an herbal supplement that comes from the roots of the green shrub tree Eurycoma longifolia, which is native to Southeast Asia.
It has been used in traditional medicine in Malaysia, Indonesia, Vietnam, and other Asian countries for centuries.
The health benefits of Tongkat Ali (Long Jack) likely stem from various compounds found in the plant.
- May increase testosterone levels and improve male fertility
- May relieve stress
- May improve body composition