Reducing excess stomach acid, which helps prevent ulcers
Health Benefits of Tongkat Ali
1) Tongkat Ali May Increase Testosterone
A 5-week pilot study of 25 seniors found that Tongkat Ali increased testosterone levels and muscle strength in both men and women .
Ali supplementation also increased testosterone levels in a 4-week
study of 76 men with hypogonadism (an impaired function of the testes) .
in a 15-week study (DB-RCT) of 13 recreational athletes, Tongkat Ali
did not increase testosterone levels in the urine, prompting the
researchers to conclude that it does not breach the International
Olympic Committee doping policies .
Tongkat Ali significantly increased testosterone levels in rats .
2) Tongkat Ali Improves Male Fertility
A 12-week study (DB-RCT) of 109 men (ages 30 to 55) found that Tongkat Ali increased sperm motility and semen volumecompared to placebo .
In another 9-month study of 75 males with infertility, Tongkat Ali supplements improved semen volume, sperm concentration, sperm motility, and sperm quality, thereby enhancing fertility .
Studies in rats also showed that Tongkat Ali reversed the inhibitory effects of estrogen on testosteroneproduction and increased sperm production, count, concentration, motility, and vitality [22, 21, 23].
3) Tongkat Ali Improves Male Sexual Health
A 12-week study (DB-RCT) in 109 men found that Tongkat Ali increased libido and improved erectile function compared to placebo .
Similarly, a 12-week study (DB-RCT) of 26 men found that a freeze-dried water Tongkat Ali supplement improved sexual performance and increased the hardness and duration of erection.
Ali also enhanced libido, sexual arousal, and performance in healthy,
impotent, castrated, and old male rats, and middle-aged mice [25, 26, 27, 28, 29, 30].
4) Tongkat Ali May Enhance Muscle Strength
Tongkat Ali supplements increased muscle strength in both men and women in a 5-week pilot study of 25 seniors .
in a 5-week pilot study of 14 healthy men, Tongkat Ali increased muscle
strength and size and improved athletic performance .
Stimulating the production of osteoblasts, or bone-forming cells
Triggering the death of cells that break down bone tissue (osteoclasts)
Decreasing bone loss and preserving bone mass
Thus, it may be used for male osteoporosis treatment.
In the lab, Tongkat Ali activated the production of bone-building proteins (such as BMP-2, RUNX-2, and OCN), which increases bone formation [16, 32].
Tongkat Ali also prevented calcium loss in the bones of castrated male rats with osteoporosis [33, 34].
in another study, Tongkat Ali did not restore testosterone levels and
bone volume in the castrated rats with osteoporosis .
7) Tongkat Ali May Combat Cancer
Tongkat Ali prevented the growth of subcutaneous (under the skin) tumors in mice .
Lab studies found that Eurycoma longifolia (the plant that Tongkat Ali originates from) contains specific compounds (quassinoids) that prevent cancer cell growth and progression [12, 17, 18, 36].
Other cell-based studies found that Tongkat Ali was effective against various types of cancers including leukemia, and lung and breast cancers. However, it only showed moderate effectiveness against gut cancer [7, 37].
8) Tongkat Ali May Reduce Stress And Anxiety
A 4-week study on 63 moderately stressed people showed that Tongkat Ali root extract reduced stress hormone (cortisol) levels, tension, anger, and confusion .
Tongkat Ali also reduced the frequency of fighting episodes and increased exploratory behavior in mice .