Eurycoma longifolia is a tall, slender evergreen shrub-tree commonly found in Southeast Asia.
The root of Eurycoma longifolia contains several chemicals that have different effects inside the body.
Some of the chemicals seem to affect how the body produces the hormone testosterone.
Research in animals and humans suggests it might increase testosterone in the body.
Tongkat Ali may increase muscle mass and strength due to its purported effects on testosterone levels.
It is sometimes used to boost athletic performance, physical strength, and to promote fat loss.
There is a suggestion that because Tongkat Ali may raise testosterone levels, it should not be, used by people with conditions that would be adversely affected by higher testosterone levels such as heart disease, hormone-sensitive cancers, liver or kidney disease, or sleep apnea.
Longjack should not be used by pregnant or nursing women or children and by those with medical conditions.
People who as weakened immune systems should avoid Tongkat Ali.
If you’re considering using Tongkat Ali or any other form of alternative medication it is advisable, to consult your primary care provider first